1. Sonli ifodalar

7-Algebra

Mavzulashtirilgan testlar

1. Sonli ifodalar .
1. sonli ifodaning qiymatini toping. 4,29+(2,1-0,13)

A) 6,26 B)5,3 C) 7,2 D) 5,7

2. Qiymati ga teng bo’lgan sonli ifodani toping.

A) 8,75-(5,2+1,18) B) ( C)1,7²-4 D) 6,3-

3.Xisoblang :

A) B) C) D)

4. Sonli tenglik to’g’ri ko’rsatilgan qatorni toping. “-8 va 3 sonlari yig’indisining ikkilanganligi shu sonlar ayirmasidan bittaga ortiq.

A) (-8+3)=(-8-3)-1 B) (-8+3) -1=-8-3 C) (-8+3) =(-8-3)+1 D) (-8+3) +1=-8-3

5. Qaysi tenglik to’g’ri . A) B) 7,3-2,1=4,1

C) 2,3²=20- D) 0,8
6. Sonli ifodaning qiymatini toping: (3,4)²+16-0,36:0.9

A) 23,96 B) 23,16 C) 23,56 D) 27,91

7. Qiymati 0,9 ga teng bo’lgan sonli ifodani toping:

A) (3,7+2,4) ,1 B) - C) 6+4,15 D)
8. Qaysi tenglik to’g’ri:

A)2,7+0,4=6,2:3 B) 0,75-0,15=2

C) D) 12:0,4 =60,28

9. Sonli tenglik to’g’ri ko’rsatilgan qatorni toping: “ 5 va 3 sonlarining ayirmasi shu sonlar ko’paytmasining ikkilanganidan 15 marta kichik “

A) (5-3)=(5) :15 B) (5-3):15=5 C) (5-3) =(5)

D) (5-3):2=(5)
10.Qiymati -3.1 ga teng bo’lgan sonli ifodani ko’rsating.
A) 13,25:2.5-8,2 B) -2 C) -2,5-0,6 D) 8,4:2,25-5,6