IV. Yangi mavzuni mustahkamlash:
4. Ifodalarda qanday amallar bor? Bu amallarnitartib bilan bajaring:
2•5+ 8=18 8•2–6=10 3 + 6•2=3+12=15
Qavssiz ifodalarda oldin tartib bilan ko‘paytirish va bo‘lish, keyin tartib bilan chapdan
o‘ngga qarab qo‘shish va ayirish bajariladi.
Namuna: 16–2•3=16–6=10
18 : 2+4•4=9+16=25
5. Misollarni tushuntirib yeching:
2•7 + 3=17 36:4 + 15=24 19 – 8 + 23=34
4•4 – 4=12 21:3+14=21 32 + 8 – 20=20
Do'stlaringiz bilan baham: |