Tricks seekh li, ab unhe pakka kaise karein? Is post mein Charu Mam batayengi ki practice kaise karein, apne jawab check kaise karein, aur end mein hoga Chapter 1 ka Speed Test! 🏁
⏱ Before Timer: Pehle Purane Tareeke Se
Pehle school wala tareeka (column method) yaad kar lein. Numbers ek ke neeche ek likho: ikai (sabse right digit) ke neeche ikai, dahai (uske left wala) ke neeche dahai. Phir right se shuru karo.
- Jod, 28 + 15: ikai 8 + 5 = 13, 3 likho aur 1 “haath ka” (carry) left wali dahai mein. Dahai 2 + 1 + 1 = 4. Jawab 43.
- Ghatana, 52 − 18: ikai mein 2 se 8 nahi ghatta, to left wali dahai se 10 udhaar lo: 12 − 8 = 4. Dahai mein ab 4 bache: 4 − 1 = 3. Jawab 34.
- Guna, 3 × 24 (24 ko 3 baar jodna): 3 × 4 = 12, 2 likho, 1 carry. 3 × 2 = 6, usme 1 jodo: 7. Jawab 72.
Ab phone ya ghadi mein stopwatch (samay naapne wali ghadi) chalu kijiye. Neeche wala sawaal isi school wale tareeke (column method) se kijiye, copy-pencil ke saath. Column method na aata ho to ungliyon pe gin kar bhi kar sakte hain. Jaise hi jawab mil jaaye, stopwatch rok dijiye aur apna time likh lijiye.
Mera time: ______ second
Jawab dekho
Paancho ke jawab: 125, 83, 43, 255, 204. Is baar paancho sawaalon ka kul time likhiye.
Abhi trick nahi dekhni! Post ke end mein After Timer mein yahi sawaal trick se karenge aur dono time ki tulna karenge. 😊
— 📌 charumam.com
✅ Pehle Yeh Aata Hai
Is post mein hum koi nayi trick nahi, balki tricks ko pakka karne ka tareeka seekhenge. Kuch shabd:
📖 Shabd jo is post mein aayenge
- Practice (abhyaas): ek hi kaam ko baar-baar karna taaki woh aasaan ho jaaye, jaise cycle chalana.
- Accuracy (sahi hona): kitne jawab sahi aaye. 10 mein se 9 sahi matlab accuracy achhi hai.
- Speed (tezi): kitne time mein kaam hua. Kam time = zyada speed.
- Stopwatch: time naapne wali ghadi. Har phone mein hoti hai (Clock app mein).
- Score: test mein kitne sahi aaye, jaise 15 mein se 13. Ise 13/15 bhi likhte hain.
- Round off karna: kisi number ko uske sabse paas wale round number tak le jaana. Ikai dekho: 5 se kam ho (1, 2, 3, 4) to neeche jaao, 43 → 40; 5 se zyada ho (6, 7, 8, 9) to upar, 48 → 50, 37 → 40. Agar number 5 pe khatam ho, to upar wale round number pe jaao: 25 → 30, 45 → 50, 15 → 20. 203 → 200.
- Andaaza (estimate): round numbers se nikaala gaya lagbhag (approximate) jawab. Isse pata chalta hai ki asli jawab “kis ilaake” mein hona chahiye.
- Ulta check: ghatane ka jawab jodkar check karna, ya jod ka jawab ghatakar. Jaise 72 − 29 = 43 hai to 43 + 29 = 72 hona chahiye.
📏 Bade numbers padhna aur round number mein jodna
Har digit ki ek jagah (place) hoti hai. Right se gino: pehli jagah Ikai (ones, 1 wale), uske left mein Dahai (tens, 10 wale), phir Saikda (hundreds, 100 wale), phir Hazaar (thousands, 1000 wale).
10 ka bundle: 10 ikai = 1 dahai (10). 10 dahai = 1 saikda (100). 10 saikde = 1 hazaar (1000). Har jagah apne right wali jagah se 10 guna badi hai.
| Number | Kaise padhein | Kis cheez se bana |
|---|---|---|
| 98 | attaanve | 9 dahai (90) + 8 ikai |
| 165 | ek sau painsath | 1 saikda (100) + 6 dahai (60) + 5 ikai |
| 999 | nau sau ninyaanve | 9 saikde (900) + 9 dahai (90) + 9 ikai |
| 1011 | ek hazaar gyaarah | 1 hazaar (1000) + 0 saikda + 1 dahai (10) + 1 ikai |
Round number mein chhota number jodna (place box niyam): chhote number ko right se likho, yaani ikai ke neeche ikai, dahai ke neeche dahai. Phir har dabbe mein jo hai, woh jawab mein utaar do. Ek digit wala number sirf ikai ka zero badalta hai, do digit wala ikai aur dahai dono.
- 100 + 65: 65 mein do digit, to 6 dahai mein aur 5 ikai mein: 1|6|5 = 165.
- 100 + 2: 2 sirf ikai mein, dahai ka 0 waise hi rehta hai: 1|0|2 = 102 (12 nahi, 120 nahi!).
- 200 + 6: 6 sirf ikai mein: 2|0|6 = 206.
- 1000 + 11: 11 mein do digit, to 1 dahai mein aur 1 ikai mein: 1|0|1|1 = 1011.
✖️ Guna kya hai? (Multiplication)
Guna (nishaan ×) matlab ek hi number ko baar-baar jodna. “6 × 4” ko bolte hain “6 guna 4”, matlab 4 ko 6 baar jodo:
6 × 4 = 4 + 4 + 4 + 4 + 4 + 4 = 24
Isi tarah 6 × 7 matlab 7 ko 6 baar jodo. Running total (har baar ka naya jod) dekho: 7, 14, 21, 28, 35, 42. To 6 × 7 = 42.
10 dahai = 1 saikda: 10 dande (har danda 10) milkar 100 bante hain, yaani 1 saikda. Isliye 24 dahai = 20 dahai + 4 dahai = 2 saikde + 4 dahai = 240. (Aur 10 saikde milkar 1 hazaar, yaani 1000, bante hain.)
Tukdon mein guna kyun kar sakte hain? 47 = 4 dande (40) + 7 cube (7). 47 ko 6 baar lena matlab neeche jaisi 6 line. Dande alag gin lo, cube alag gin lo, kul utna hi rahega:
6 × 47 = (6 × 40) + (6 × 7) = 240 + 42 = 282
Guna mein carry 1 se bada ho sakta hai: jod mein carry aksar 1 hota hai, par guna mein bada bhi aa sakta hai. Column mein 6 × 7 = 42 aaya, yaani 4 dahai aur 2 ikai. To ikai mein 2 likho aur 4 dahai carry karo (aage le jao). Phir dahai mein 6 × 4 = 24, usme carry ke 4 jodo: 24 + 4 = 28. Jawab 282.
Guna mein jagah badlo, jawab wahi: 16 × 4 aur 4 × 16 ek hi cheez hain. Neeche dots dekho: 4 line, har line mein 16 dots. Line se gino to 4 baar 16; khade column se gino to 16 baar 4. Dots wahi hain, to jawab bhi wahi: 64. Isliye jo aasaan lage, us tarah jodo.
10 se guna: 3 × 10 matlab 10 ko 3 baar jodna: 10 + 10 + 10 = 30. Kisi number ko 10 se guna karo to woh har digit ek jagah left khisak jaata hai aur ikai mein 0 aa jaata hai: 3 → 30, 30 → 300.
🔁 Chhota sa warm-up
- 99 + 15 = ? (Post 1.1 trick)
- 40 + 30 + 6 + 7 = ?
- 48 ko round off karo (sabse paas ka 10 wala number)
Answers dekho
- 114
- 83
- 50
Teeno sahi? Waah! Koi galat hua? Post 1.1 aur 1.2 ek baar dekh lo, phir yahan aao.
— 📌 charumam.com
🎬 Kahani: Kabir Aur Cricket Coach
Kabir ko cricket ka bahut shauk hai. Usne YouTube pe 50 video dekhe ki cover drive kaise maarte hain. Par match mein pehli hi ball pe out! 😢
Coach ne kaha: “Kabir, video dekhne se shot nahi aata. Roz net mein 20 minute practice karo. Pehle dheere aur sahi technique, phir power. Aur har din likho ki kitni ball sahi lagi.”
Ek mahine baad Kabir ki cover drive team mein sabse achhi thi. 🏏
Speed Maths bhi bilkul aisa hi hai. Trick padh li, to aadha kaam hua. Baaki aadha kaam hai roz ki chhoti practice, sahi tareeke se. Chaliye, Charu Mam ka practice plan dekhte hain.
— 📌 charumam.com
🪄 Trick Step by Step: Roz Ka 10-Minute Practice Plan
💡 Is post ki ek badi baat: Trick padhne se nahi, roz thodi-thodi practice se dimaag mein baithti hai. Pehle dheere aur sahi, phir tez. Har jawab ko andaaze ya ulta karke check karo, aur apna time likhte raho taaki progress dikhe.
Step 1: Warm-up (2 minute)
Zor se bolo: 10 ke dost (1 aur 9, 2 aur 8, 3 aur 7, 4 aur 6, 5 aur 5) aur 100 ke dost (90 aur 10, 80 aur 20, 75 aur 25, 98 aur 2). Jaise khelne se pehle stretching!
Step 2: Ek trick, dheere (3 minute)
Aaj ki ek trick chuno (jaise “Pehle 10 Banao”). 5 sawaal karo, aur har step bolkar karo: “98 ko 100 banaya, 2 diye, 67 se 2 liye, 65, kul 165.” Bolne se dimaag step yaad rakhta hai.
Step 3: Timer round (3 minute)
Ab 10 sawaal timer ke saath. Time aur score (kitne sahi) dono likho, jaise: “Din 3: 10 mein 9 sahi, 70 second.”
Step 4: Check aur Galti Diary (2 minute)
Har jawab check karo (neeche 2 tareeke hain). Jo galat hua, use ek chhoti copy, “Galti Diary”, mein likho: sawaal, galat jawab, sahi jawab, aur galti kis step pe hui.
Check karne ke 2 tareeke
1. Andaaza check (badi galti pakadta hai): numbers ko round off karo aur jodo. 48 + 37 → 50 + 40 = 90. Asli jawab 90 ke aas-paas hona chahiye. Andaaza sirf ilaaka (rough area) batata hai, exact jawab nahi.
📏 Niyam (do numbers ke jod ke liye): jawab andaaze se 10 se zyada door ho, to pakka galti hai, dobara karo. 10 ya usse kam door ho, to jawab “theek lagta hai”, par chhoti galti abhi bhi ho sakti hai.
48 + 37: 85 aaya? 90 se sirf 5 door, theek lagta hai ✅. 815 aaya? 90 se bahut zyada door, pakka galat ❌.
2. Ulta check (chhoti galti bhi pakadta hai): ghatane ko jodkar check karo. 72 − 29 = 43? To 43 + 29 = 72 hona chahiye. Hua? ✅
Hafte ka plan
| Din | Kya karein (10 minute) |
|---|---|
| Somvaar | Pehle 10 Banao (Post 1.1) |
| Mangalvaar | Todo aur Jodo (Post 1.2) |
| Budhvaar | Dono tricks mix |
| Guruvaar | Galti Diary ke sawaal dobara |
| Shukravaar | Speed Test (neeche wala) aur time likho |
| Shanivaar | Khel: dukaan ka bill, gaadi ke number plate ke digits jodo |
| Ravivaar | Aaraam, ya sirf 2 minute warm-up |
🆘 Atak gaye? Aise socho
- Pehle din time zyada laga? Bilkul normal! Nayi trick pehle dheere hi chalti hai. 3 se 4 din mein speed badhegi.
- Galtiyan zyada ho rahi hain? Speed kam karo. Har step bolkar karo. Sahi hona pehle, tez hona baad mein.
- Bore ho rahe ho? Khel banao: cricket ka score, car number plate ke digit jodna, ya dost ke saath race.
- Trick bhool jaate ho? Post ka “Trick Step by Step” wala hissa ek chhoti card pe likho aur kitaab mein rakho.
— 📌 charumam.com
🔍 Yeh Kaam Kyun Karta Hai?
Practice se dimaag mein “raasta” banta hai. Socho ek ghaas ka maidaan hai. Pehli baar chalo to raasta nahi dikhta. Roz usi jagah se chalo, to ek saaf pagdandi (footpath) ban jaati hai, aur chalna aasaan ho jaata hai. Dimaag mein bhi aisa hi hota hai: jo kaam hum baar-baar karte hain, uska raasta pakka ho jaata hai aur kaam automatic ho jaata hai.
Roz 10 minute, hafte mein ek baar 70 minute se behtar kyun? Dimaag ko seekhi hui cheez “jamaane” ke liye beech mein aaraam aur neend chahiye. Thoda-thoda roz karne se har din raasta thoda aur pakka hota hai.
Pehle sahi, phir tez kyun? Agar hum tez-tez galat karte rahe, to dimaag galat raasta pakka kar leta hai! Isliye pehle dheere aur sahi.
Andaaza check kaam kyun karta hai? Round off karne mein har number thoda sa hi badalta hai. 48 → 50 (2 badha), 37 → 40 (3 badha). To andaaza asli jawab se sirf 2 + 3 = 5 zyada hoga: 90 − 5 = 85.
“10” wala niyam kyun? Round off mein koi bhi number zyada se zyada 5 badalta hai (jaise 25 → 30, ya 43 → 40 mein sirf 3). Do numbers hain, to andaaza asli jawab se zyada se zyada 5 + 5 = 10 door ho sakta hai. Isliye 10 se zyada door wala jawab galat hi hoga. Par 1-2 ki chhoti galti 10 ke andar chhup jaati hai; use ulta check pakadta hai.
Ulta check kaam kyun karta hai? Ghatana aur jodna ek doosre ke ulte hain. 72 mein se 29 nikaale to 43 bache. Ab woh 29 wapas daal do to 72 hi hona chahiye.
— 📌 charumam.com
✏️ Solved Examples (Har Ek Normal Tareeke Se Check)
Example 1: Riya ne 48 + 37 = 85 likha. Andaaze se check karo.
Round off: 48 → 50, 37 → 40. Andaaza: 50 + 40 = 90. 85 aur 90 mein sirf 5 ka farak hai (10 se kam), to jawab theek lagta hai ✅ (Pakka karna ho to ulta check: 85 − 37 = 48 ✅)
✔️ Normal tareeke se check: Column: ikai 8 + 7 = 15, 5 likho, 1 carry. Dahai 4 + 3 + 1 = 8. Jawab 85 ✅
Example 2: Rohan ne likha: 59 + 26 → 715. Kya yeh sahi hai?
Andaaza: 60 + 30 = 90. 715 to 90 se 10 se bahut zyada door hai, to pakka galat ❌. Rohan ne 5 + 2 = 7 aur 9 + 6 = 15 ko bas saath chipka diya, place value bhool gaya. Sahi: 50 + 20 = 70, 9 + 6 = 15, 70 + 15 = 85.
✔️ Normal tareeke se check: Column: ikai 9 + 6 = 15, 5 likho, 1 carry. Dahai 5 + 2 + 1 = 8. Jawab 85 ✅
Example 3: 72 − 29 = 43. Ulta check karo.
Jawab mein woh number wapas jodo jo ghataya tha: 43 + 29 = 72. Shuru wala number mil gaya, to jawab sahi ✅
✔️ Normal tareeke se check: Column: ikai mein 2 se 9 nahi ghatta, dahai se 1 udhaar: 12 − 9 = 3. Dahai mein ab 6: 6 − 2 = 4. Jawab 43 ✅
Example 4: Riya ke 20-sawaal test mein pehle din 95 second lage aur 16 sahi aaye. Saatvein din 42 second lage aur 19 sahi aaye. Kitne second bache, aur kitne zyada sahi?
Time bacha: 95 − 42 = 53 second. Sahi jawab badhe: 19 − 16 = 3. Matlab Riya tez bhi hui aur sahi bhi! 🎉
✔️ Normal tareeke se check: Ulta check: 42 + 53 = 95 ✅ aur 16 + 3 = 19 ✅
— 📌 charumam.com
🕉️ Vedic Maths Connection
Practice plan khud koi Vedic sutra nahi hai. Yeh ek general study method hai jo har skill (cricket, music, maths) pe lagta hai.
Haan, jawab check karne ka ek aur tareeka, digit sum check (digit sum matlab number ke saare digits ka jod, jaise 23 ka digit sum 2 + 3 = 5; kai Vedic Maths kitaabein ise “Beejank” kehti hain), hum Chapter 18 mein seekhenge. Woh guna aur bade jod ke check ke liye bahut kaam ka hai.
— 📌 charumam.com
🧭 Kab Use Karein, Kab Nahi
| Situation | Trick use karein? | Kyun |
|---|---|---|
| Har jawab ke baad andaaza check | ✅ Haan | 2 second lagte hain aur badi galti turant pakad leta hai. |
| Ghatane ka jawab | ✅ Ulta check | Jodkar shuru wala number aana chahiye. |
| Subah ya school ke baad fresh dimaag | ✅ Practice ka best time | Thaka dimaag galtiyan zyada karta hai. |
| Raat ko bahut thake hue | ❌ Nayi trick nahi | Sirf 2 minute warm-up kaafi hai. |
| Exam se ek raat pehle | ❌ Nayi trick nahi | Sirf purani, pakki tricks revise karo. |
— 📌 charumam.com
❌→✅ Common Mistakes
Galti 1: Pehle din se hi sirf speed ke peeche
Aman: 20 sawaal 40 second mein, par sirf 9 sahi. Sana: 20 sawaal 90 second mein, 18 sahi.
❌ Aman sochta hai woh jeeta. ✅ Asal mein Sana aage hai! Uske jawab sahi hain, aur speed practice se aa jaayegi. Aman ka dimaag galat raasta pakka kar raha hai.
Galti 2: Sirf padhna, khud na karna
❌ “Maine trick padh li, samajh aa gayi, practice ki zaroorat nahi.”
✅ Samajhna aur kar paana alag hain, jaise cricket ka video dekhna aur khelna. Har post ke Speed Drill khud, timer ke saath karo.
Galti 3: Sirf andaaze pe bharosa, ulta check skip
Sawaal: 68 + 25. Kisi ne likha → 92.
Andaaza: 68 → 70, 25 → 30 (5 pe khatam, to upar). 70 + 30 = 100. 92 aur 100 mein 8 ka farak, yaani 10 se kam. Niyam ke hisaab se “theek lagta hai”, isliye andaaza yeh chhoti galti nahi pakad sakta. (Sahi jawab 93 bhi 100 se 7 door hai; dono ilaake mein hain.)
✅ Ulta check: jawab mein se 25 ghatao. Pehle 20 (10-10 peeche: 92 → 82 → 72), phir 5 (71, 70, 69, 68, 67): 67. Par shuru mein to 68 tha! To 92 galat hai. Sahi: 60 + 20 = 80, 8 + 5 = 13, 80 + 13 = 93. Check: 93 − 25 = 68 ✅
Optional (careful step): round off mein kitna badha, woh andaaze se ghata do: 68 → 70 (2 badha), 25 → 30 (5 badha), kul 7 badha. 100 − 7 = 93. Yeh bhi 93 deta hai, par yeh zaroori nahi; ulta check kaafi hai.
Seekh: andaaza badi galti pakadta hai, ulta check chhoti galti bhi.
🧠 Rule of thumb: Pehle sahi, phir tez, aur har jawab ka check!
— 📌 charumam.com
🏃 Speed Drill: 15 Sawaal, Timer Ke Saath
🏁 Chapter 1 Speed Test! Yeh 15 sawaal Post 1.1 aur 1.2 ki tricks se hain. Timer lagao, sab mann mein karo, sirf jawab likho.
| Result | Matlab |
|---|---|
| 13 se 15 sahi, 3 minute se kam | 🏆 Chapter 1 pass! Chapter 2 ke liye taiyaar. |
| 13 se 15 sahi, par 3 minute se zyada | ✅ Sahi pakka hai, ab speed badhao. Roz ek timer round karo, phir test dobara. |
| 10 se 12 sahi (time kitna bhi) | 🚀 Achha! 2-3 din aur practice, phir test dobara. |
| 10 se kam sahi | 🌱 Koi baat nahi. Galti Diary banao aur Post 1.1, 1.2 phir se dekho. |
- 99 + 45 = ?
- 98 + 36 = ?
- 29 + 17 = ?
- 197 + 28 = ?
- 46 + 27 = ?
- 58 + 34 = ?
- 125 + 314 = ?
- 264 + 129 = ?
- 83 − 40 = ?
- 91 − 36 = ?
- 64 − 29 = ?
- 4 × 23 = ?
- 6 × 15 = ?
- 8 × 12 = ?
- 49 + 31 ka andaaza lagao (round off karke)?
Mera time: ______ · Sahi: ____ / 15
Answers dekho (pehle khud karo!)
- 144
- 134
- 46
- 225
- 73
- 92
- 439
- 393
- 43
- 55
- 35
- 92
- 90
- 96
- 50 + 30 = 80 (asli jawab bhi 80 hai!)
Guna wale sawaal (Q12–Q14) step by step (“Guna kya hai” box upar dekho):
- Q12. 4 × 23: 23 = 20 + 3. 4 × 2 = 8, yeh dahai hain: 8 dahai = 80. 4 × 3 = 12 (3, 6, 9, 12). Milao: 80 + 12 = 92.
- Q13. 6 × 15: 15 = 10 + 5. 6 × 1 = 6, yeh dahai hain: 6 dahai = 60. 6 × 5 = 30 (5, 10, 15, 20, 25, 30). Milao: 60 + 30 = 90. Column: 6 × 5 = 30, 0 likho, 3 carry; 6 × 1 = 6, plus 3 = 9. Jawab 90 ✅
- Q14. 8 × 12: 12 = 10 + 2. 8 × 1 = 8, yeh dahai hain: 8 dahai = 80. 8 × 2 = 16. Milao: 80 + 16 = 96.
— 📌 charumam.com
⏰ One-Minute Challenge
Sirf 1 minute (60 second). Timer lagao, aur jitne ho sakein utne sawaal mann mein (bina copy ke) karo. Sirf jawab likhna hai.
- 9 + 8 = ?
- 99 + 9 = ?
- 47 + 22 = ?
- 38 + 15 = ?
- 99 + 99 = ?
- 60 − 25 = ?
- 55 + 45 = ?
- 3 × 16 = ?
- 28 + 72 = ?
- 150 + 75 = ?
| Rating | Kitne sahi, kitne time mein |
|---|---|
| 🌱 Beginner | 60 second mein 5 se 7 sahi. Badhiya shuruaat! |
| 🚀 Pro | 60 second mein 8 ya 9 sahi |
| 🏆 Champion | 10 mein 10 sahi, 60 second ke andar |
Answers dekho
- 17
- 108
- 69
- 53
- 198
- 35
- 100
- 48
- 100
- 225
Q8. 3 × 16: 16 = 10 + 6. 3 × 1 = 3, yeh dahai hain: 3 dahai = 30. 3 × 6 = 18 (6, 12, 18). Milao: 30 + 18 = 48. (Check: 16 + 16 + 16 = 48 ✅)
5 se kam sahi? Koi baat nahi! Trick wala section ek baar aur padho aur kal phir try karo. Har din thoda better, bas yahi chahiye. 💪
— 📌 charumam.com
📝 10 MCQs (Har Option Ka Kaaran)
MCQ matlab ek sawaal ke chaar jawab (options) diye hote hain, unme se ek sahi chunna hai.
Q1. Speed maths ki practice ka sabse achha tareeka kya hai?
Jawab aur kaaran dekho
Sahi jawab: (d) Roz 10 minute
- (a) galat ❌: Ek saath lambi practice mein thakaan hoti hai aur beech mein bhool jaate hain.
- (b) galat ❌: Exam se pehle nayi cheez seekhna tension badhata hai.
- (c) galat ❌: Video se samajh aata hai, par khud kiye bina skill nahi aati.
- (d) sahi ✅: Roz thodi practice se dimaag mein raasta pakka hota hai.
Q2. Practice mein sabse pehle kis par dhyaan dena chahiye?
Jawab aur kaaran dekho
Sahi jawab: (c) Sahi jawab (accuracy)
- (a) galat ❌: Calculator se mental maths ki practice hi nahi hoti.
- (b) galat ❌: Page bharne se nahi, sahi soch se seekhte hain.
- (c) sahi ✅: Pehle sahi, phir speed apne aap aati hai.
- (d) galat ❌: Tez par galat jawab ke marks nahi milte, aur galat aadat pakki hoti hai.
Q3. 48 + 37 ka andaaza (round off karke) kya hoga?
Jawab aur kaaran dekho
Sahi jawab: (b) 90
- (a) galat ❌: 10 to farak jaisa hai, jod nahi.
- (b) sahi ✅: 48 → 50, 37 → 40, aur 50 + 40 = 90.
- (c) galat ❌: 70 tab aata jab 48 ko 40 aur 37 ko 30 kar dete. Sabse paas wala round number lena hai.
- (d) galat ❌: 800 bahut bada hai. Do 2-digit numbers ka jod 200 se kam hi hota hai.
Q4. 72 − 29 = 43 ko ulta check kaise karein?
Jawab aur kaaran dekho
Sahi jawab: (a) 43 + 29 = 72 dekho
- (a) sahi ✅: Jo ghataya (29) use jawab mein wapas jodo, shuru wala number (72) aana chahiye.
- (b) galat ❌: Isse 14 aata hai, jiska check se koi lena-dena nahi.
- (c) galat ❌: Yeh 101 deta hai, jo kuch check nahi karta.
- (d) galat ❌: Ghatane ka check jodkar hamesha ho sakta hai.
Q5. Rohan ne 59 + 26 ka jawab 715 likha. Andaaza kya kehta hai?
Jawab aur kaaran dekho
Sahi jawab: (d) Galat hai, jawab 90 ke aas-paas hona chahiye
- (a) galat ❌: 715 bahut bada hai. Galti place value bhoolne se hui.
- (b) galat ❌: Har jod ka andaaza round off karke lag sakta hai.
- (c) galat ❌: Round off karke 90 aata hai, 700 nahi.
- (d) sahi ✅: 60 + 30 = 90. 715 bahut door hai, to galat. Sahi jawab 85.
Q6. Galti Diary kyun banaate hain?
Jawab aur kaaran dekho
Sahi jawab: (c) Taaki wahi galti dobara na ho
- (a) galat ❌: Copy bharna maqsad nahi, seekhna maqsad hai.
- (b) galat ❌: Bahut fayda hai: yahi sabse tez sudhaar ka tareeka hai.
- (c) sahi ✅: Apni galti likhne se pata chalta hai kaunsa step kamzor hai, aur woh theek ho jaata hai.
- (d) galat ❌: Teacher ko dikhana zaroori nahi. Yeh aapke apne liye hai.
Q7. Riya ka time 95 second se 42 second ho gaya. Kitne second bache?
Jawab aur kaaran dekho
Sahi jawab: (b) 53
- (a) galat ❌: 63 + 42 = 105, 95 nahi.
- (b) sahi ✅: 95 − 42 = 53. Check: 42 + 53 = 95.
- (c) galat ❌: 47 + 42 = 89, 95 nahi.
- (d) galat ❌: 137 to jod hai (95 + 42), farak nahi.
Q8. Andaaza check kaunsi galti aksar NAHI pakad paata?
Jawab aur kaaran dekho
Sahi jawab: (a) Chhoti galti, jaise 93 ki jagah 92
- (a) sahi ✅: 68 + 25 ka andaaza 100 hai. 92 aur 93 dono 100 se 10 ke andar hain, to dono “theek lagte hain”. Iske liye ulta check chahiye.
- (b) galat ❌: 715 to andaaze se bahut door hai, turant pakdi jaati hai.
- (c) galat ❌: Digit chipkane se jawab bahut bada ho jaata hai, andaaza pakad leta hai.
- (d) galat ❌: 10 guna bada jawab andaaze se bahut door hota hai, pakda jaata hai.
Q9. 99 + 99 = ?
Jawab aur kaaran dekho
Sahi jawab: (d) 198
- (a) galat ❌: 199 tab aata jab doosre 99 se 1 lena bhool jaate.
- (b) galat ❌: 188 mein 10 kam ho gaye.
- (c) galat ❌: 1818 mein 9 + 9 = 18 do baar chipka diya.
- (d) sahi ✅: 100 + 98 = 198 (Pehle 100 Banao).
Q10. Nayi trick se pehle din time zyada lage to kya karein?
Jawab aur kaaran dekho
Sahi jawab: (c) Practice jaari rakho, kuch din mein speed aayegi
- (a) galat ❌: Calculator se dimaag ki practice nahi hogi.
- (b) galat ❌: Pehle aasaan sawaal se trick pakki karo, phir mushkil.
- (c) sahi ✅: Nayi trick ko 3 se 4 din chahiye. Phir yeh purane tareeke se tez ho jaati hai.
- (d) galat ❌: Pehle din dheere hona normal hai, chhodna galat hai.
— 📌 charumam.com
🧠 Challenge: HOTS Aur Olympiad Style
HOTS matlab Higher Order Thinking Skills, yaani aise sawaal jinme sirf trick nahi, thoda dimaag bhi lagana padta hai. Olympiad ek maths competition (pratiyogita) hota hai.
Q1. 198 + 403 + 297 ka andaaza lagao, phir andaaze se hi exact jawab nikaalo.
Solution dekho
Andaaza: 200 + 400 + 300 = 900. Ab dekho round off mein kya badla: 198 → 200 (2 badha), 403 → 400 (3 ghata), 297 → 300 (3 badha). Kul 2 + 3 = 5 badha aur 3 ghata, yaani 2 zyada. To exact jawab 900 − 2 = 898.
Check: 198 + 403 = 601, phir 601 + 297 = 898 ✅
Q2. Aman ne likha: 4 × 21 → 82. Andaaza: 21 → 20, aur 4 × 20 = 80. 82 to 80 ke paas hai, to Aman bolta hai “sahi hai”. Kya woh sahi hai?
Solution dekho
82 andaaze ke ilaake mein hai, par andaaza sirf ilaaka batata hai, chhoti galti nahi pakadta. Todkar karo: 21 = 20 + 1. 4 × 2 = 8, yeh dahai hain, to 4 × 20 = 80. 4 × 1 = 4. 80 + 4 = 84. Aman galat tha (2 kam).
Check: 21 + 21 + 21 + 21 = 84 ✅. Seekh: andaaza “ilaaka” batata hai, exact check alag se karo.
Q3. Speed test mein 20 sawaal hain. Har sahi jawab pe 4 marks (ank) milte hain, har galat pe 1 mark (ank) katta hai, aur chhode hue sawaal pe 0. Riya ne 18 sawaal kiye, unme 16 sahi. Uska score kya hai?
Solution dekho
Sahi: 16 sawaal, har ek pe 4 marks, yaani 16 × 4 (4 ko 16 baar jodna). Aasaan tareeka: guna mein jagah badal sakte hain (upar “Guna kya hai” box ka dots wala chitra: 4 line × 16 dots = 16 column × 4 dots). To 16 baar 4 ki jagah 4 baar 16 jodo: 16, 32, 48, 64. To 16 × 4 = 64 marks. Galat: 18 − 16 = 2, to 2 marks kate. Chhode: 2, unke 0. Score = 64 − 2 = 62.
Check: 16 + 2 + 2 = 20 sawaal ✅
Q4. Riya roz 10 minute practice karti hai. 30 din mein kul kitne ghante practice hui?
Solution dekho
30 din, har din 10 minute: 30 × 10. 10 se guna karne pe ikai mein 0 lag jaata hai: 30 × 10 = 300 minute. 1 ghanta = 60 minute. 60-60 aage gino: 60, 120, 180, 240, 300, yaani 5 baar 60. To 5 ghante. Sirf 10 minute roz, aur mahine mein 5 ghante! ⏱
— 📌 charumam.com
🎯 Exam Mein Kahan Kaam Aayega?
| Exam | Kahan kaam aayega |
|---|---|
| School exam | Har sawaal ke baad 2 second ka andaaza check bahut saari silly mistakes bacha leta hai. |
| Maths Olympiad | Time kam, sawaal zyada. Roz ki timer practice exam ka pressure kam karti hai. |
| NTSE | Negative marking wale exam mein “sahi pehle” wali aadat sabse zaroori hai (Challenge Q3 jaisa scoring). |
| SSC / Bank (aage chal ke) | Yahan har second ginta hai. Roz ki speed practice ka fayda seedha marks mein dikhta hai. |
Shabdon ka matlab: Olympiad = school ke bachchon ki maths pratiyogita (competition). NTSE = Class 10 ke bachchon ka ek national scholarship (vazifa) exam. SSC / Bank exam = badon ke sarkari naukri ke exam. Negative marking = galat jawab pe marks (ank) katna. Sahi pe marks milte hain, galat pe kuch marks kat jaate hain, chhode hue sawaal pe 0.
— 📌 charumam.com
👩🏫 Charu Mam Ka Tip
Bachcho, apna ek Speed Chart banao: copy ke peeche har din ka time aur score likho, aur hafte ke end mein dekho. Jab aapko apna time 95 se 42 hota dikhega na, woh khushi kisi bhi game se badi hogi! Aur yaad rakho: doosron se nahi, apne kal se muqabla karo. 💗
— 📌 charumam.com
⏱ After Timer: Ab Trick Se!
Wahi sawaal jo shuru mein kiya tha. Stopwatch phir chalu kijiye, aur is baar aaj ki trick se kijiye:
Trick se kaise karein (dekho)
- 99 + 26: 100 + 25 = 125 (Post 1.1)
- 48 + 35: 40 + 30 = 70, 8 + 5 = 13, 70 + 13 = 83 (Post 1.2)
- 72 − 29: 30 ghatao, 10-10 peeche gin kar: 72 → 62 → 52 → 42. Ek zyada ghataya tha, to 1 wapas jodo: 42 + 1 = 43
- 198 + 57: 200 + 55 = 255
- 6 × 34: 6 × 30 = 180 (6 × 3 = 18, yeh dahai hain, 18 dahai = 180), 6 × 4 = 24, 180 + 24 = 204
| Before time | After time | Kitna tez? |
|---|---|---|
| ____ second | ____ second | Before − After = ____ second bache! |
Pehli baar mein time zyada bhi lag sakta hai, ghabraiye nahi! Nayi trick ko 3 se 4 din ki practice chahiye. Phir yeh purane tareeke se kaafi tez ho jaati hai. 🚀
— 📌 charumam.com
🤖 Aur Practice: AI Tutor Se Poochho
Neeche wali line copy kijiye aur CharuMam AI Tutor (tutor.charumam.com) mein paste kar dijiye. Tutor aapko naye sawaal dega aur galti hone pe samjhayega:
— 📌 charumam.com
❓ FAQs (Bachchon Ke Asli Sawaal)
1. Roz kitni der practice karein?
10 minute kaafi hain. Lambi practice se zyada zaroori hai roz karna.
2. Kya phone ke game se bhi practice hoti hai?
Haan, maths ke games madad karte hain. Par screen time ka dhyaan rakho, aur copy-pencil ke bina wali practice (dukaan ka bill, number plate) bhi karo.
3. Andaaza check aur ulta check mein kaunsa use karein?
Andaaza har jawab pe (2 second). Ulta check ghatane ke jawab pe, ya jab jawab thoda bhi shaky lage.
4. Test mein bahut galtiyan aayi, ab kya?
Ghabraiye mat! Galti Diary mein likho, dekho kaunsa step galat hua, aur sirf woh step 2 din practice karo. Phir test dobara.
5. Kya Speed Test baar-baar de sakte hain?
Haan! Har hafte dobara do aur time ki tulna karo. Sawaal yaad ho jaayein to Speed Drill ke numbers thode badal kar khud naye sawaal banao.
6. Agar mujhe speed kabhi na aaye to?
Aayegi, pakka! Speed kisi ka janmjaat gun nahi, practice ka nateeja hai. Kabir ki cover drive yaad hai na? 🏏
— 📌 charumam.com
🟢 Recap: Aaj Kya Seekha
- Trick padhna aadha kaam hai. Baaki aadha: roz 10 minute practice.
- 4 steps: Warm-up → Ek trick dheere → Timer round → Check aur Galti Diary.
- Andaaza check (round off karke; 5 pe khatam ho to upar) sirf ilaaka batata hai: do numbers ke jod mein jawab 10 se zyada door ho to galat. Ulta check chhoti galti bhi pakadta hai.
- Pehle sahi (accuracy), phir tez (speed). Tez-galat practice galat aadat pakki karti hai.
- Apna time aur score likho. Apne kal se muqabla karo.
- Speed Test mein 13+ sahi? Chapter 2 ke liye taiyaar! 🏆
— charumam.com 🎯
👉 Aage Kya?
Chapter 1 poora! 🎉 Ab Chapter 2 mein seekhenge Left to Right Addition: school mein hum right se jodte hain, par mann mein left se jodna kaafi tez hai. Shuru karte hain 2-digit numbers se.
Koi doubt? CharuMam AI Tutor se poochho, ya comment mein likho! 💬
💛 Post Achha Laga? Like, Share, Subscribe, Follow!
Agar aaj kuch naya samajh aaya, to post ko like kijiye, apne doston aur class ke group mein share kijiye, aur roz nayi trick ke liye humein subscribe aur follow kijiye! 🙏
- 🌐 Website: charumam.com
- 🤖 AI Tutor (doubt poochho, 24×7): tutor.charumam.com
- ▶️ YouTube (subscribe): @charumamofficial
- 📸 Instagram (follow): @charumamofficial
- ✈️ Telegram: t.me/charumam
- 💬 WhatsApp Channel: Charu Mam WhatsApp Channel
— 📌 charumam.com
