Games aur jeetne ki tarkeeb
Class 6 Maths · Chapter 3: Number Play · NCERT Ganita Prakash section 3.12
Seekho
20 tak ki race: pehla khiladi 1 ya 2 bolta hai. Phir khiladi baari-baari total mein 1 ya 2 jodte hain. Jo 20 bolega wo jeetega.
Apne study buddy ke saath khelo! Kya tum raaz dhoondh sakte ho?
Raaz: 20 se ulta chalo. Agar tum 17 bolo, dost sirf 18 ya 19 tak pahunch sakta hai, phir tum 20. To 17 jeetne wala number hai, aur 14, 11, 8, 5 aur 2 bhi: har ek 3 kam.
Game 2: har baari 1 se 5 tak jodo; jo pehle 50 bole wo jeete. Ab jeetne wale numbers 6 ke jump se: 2, 8, 14, 20, 26, 32, 38, 44, 50.
Yaad rakho
- Jeetne wale number se ulta chalo.
- Agar 1 se k tak jod sakte ho, to jeetne wale numbers k + 1 ki doori par hain.
Quick check
20 tak ki race mein (1 ya 2 jodkar) pakki jeet ke liye kaunsa number bolna chahiye?
- 15
- 16
- 17
- 18
Answer
17. 17 ke baad dost sirf 18 ya 19 tak pahunchega, phir tum 20 bologe.
Socho
30 tak ki race: khiladi har baari 1, 2, 3 ya 4 jodte hain. Tumhe pehle khelna chahiye ya baad mein? Tumhara plan kya hai?
Ek answer
Jeetne wale numbers 30, 25, 20, 15, 10 aur 5 hain (har ek 5 kam). Pehla khiladi seedha 5 nahi bol sakta, isliye baad mein khelo: dost jo bhi jode, tum itna jodo ki 5 bane, phir 10, 15, 20, 25 aur 30.
Practice
Teen levels (easy, medium, hard) ke naye sawaalon se practice karo, kuch hands-on, hints aur hal ke saath. Topic poora karne ke liye pichhle 5 mein se 4 sahi karo.