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Aasaan andaaza

Class 6 Maths · Chapter 3: Number Play · NCERT Ganita Prakash section 3.11

Seekho

Kabhi-kabhi andaaza kaafi hai. Meher ki class ke sections mein 41, 38 aur 43 bachche hain: lagbhag 120. Aisi 4 classes ho to school mein lagbhag 480 bachche.

≈ 120 × 4 = 480

Jaldi andaaze ke liye pehle numbers round karo: 4,987 + 3,112 lagbhag 5,000 + 3,000 = 8,000.

4,987 + 3,112 ≈ 8,000

Andaaze galtiyaan pakadne mein madad karte hain. Kabir kehta hai usne pichhle saal 20,000 ghante TV dekha. Par poore saal mein sirf 365 × 24 = 8,760 ghante hote hain! To uska number sahi nahi ho sakta.

365 × 24 = 8,760

Explore: pehle andaaza lagao, phir apna andaaza number line par lagao.

  1. 4,987 + 3,112 lagbhag kitna hai? Apna andaaza lagao.
  2. 2,045 + 5,960 lagbhag kitna hai?
  3. Har class ke teen sections mein 41, 38 aur 43 bachche hain. Aisi 4 classes mein lagbhag kitne bachche? (Socho: har class lagbhag 120.)

Yaad rakho

  • Numbers ko aasaan values tak round karke andaaza lagao, phir hisaab karo.
  • Andaaza batata hai ki answer samajh mein aata hai ya nahi.

Quick check

31, 28 aur 33 bachchon ke teen sections mein lagbhag kitne bachche hain?

  1. lagbhag 30
  2. lagbhag 90
  3. lagbhag 300
  4. lagbhag 900
Answer

lagbhag 90. Har ek lagbhag 30, aur 3 × 30 = 90.

Socho

Andaaza lagao tum ek ghante mein kitni baar palak jhapakte ho.

Ek answer

Lagbhag 15 baar ek minute × 60 minute = lagbhag 900 baar ek ghante mein. Thoda alag answer bhi theek hai: ye andaaza hai.

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.