A.150km B.100km C.125km
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8
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10
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Javob
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C
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C
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A
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B
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A
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C
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A
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C
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B
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C
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Qo‘shish va ayirish, ko‘paytirish va bo‘lish amali ma'nosini ochib berish hamda uni bosqichlab konsentrlarda bajarilishini o‘rgatish.
1.Yig‘indini songa ko‘paytiring.
A. 3×(7+2) B.(7+4)×2 C.3×2
2.Yig‘indini bo‘lish bilan almashtiring. (4+6):2
A. (4+6):2=4:2+6:2 B.(4+6):2=10:2 C. Almashtirib bo‘lmaydi.
3.Ko‘paytmani qo'shish bilan almashtiring.
A.(12+3)×3 B.(11+4)×3 C.(10+5)×3
4.Qulay usulda hisoblang. ( 834+98)-204
A. (800+34+98)-234 B.(834-234)+98 C. 834-(200+34)+98
5. 21:7=3 bo‘linmani ayirma bilan almashtiring.
A. (21-7):7+7:7 B. (21-7)-7-7 C.Almashtirib bo‘lmaydi.
6. 834 sonini xona birliklariga ajrating.
A.80+30+4 B.800+30+4 C.8000+30+4
7.Sondan yig‘indini ayiring.
A.15-(7+8) B.(12+3)-(7+8) C.(14+3)-8
8. 5-3=2 misol komponentlarini yozing.
A. Kamayuvchi, ayriluvchi, ayirma C.Kamayuvchi, kamaytuvchi, ayirma B. Ayriluvchi, ayiruvchi, ayirma
9.100lik konsentrdagi misolni ko‘rsating.
A.10-2=8 B.39-19=20 C.10+5=15
10. Ayirishning noma'lum komponentini toping. 98-□□=42
A.46 B.56 C.30
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Javob
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B
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B
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C
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B
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B
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B
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A
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A
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B
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B
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