8
A) 45 B) 39
C) 48
D) 42
12. Ismli sonli ifodaning qiymatini toping: 267min+2580sekund:60·3
=
A) 272 min
B)269 min 9
sekund
C) 271 min 9sekund D) 267 min 132 sekund
13. Ismli sonli ifodaning qiymatini toping:
(15soat+10min)
·5-50min=
A) 75 soat
B) 90 soat 40 min
C) 75 soat 40 min D) 78 soat 50 min
14. To’g’ri to’rtburchak
shaklidagi hovlining yuzi
.Hovlida kvadrat shaklidagi 4 ta
maydon hosil qilindi. 1-qismi hovli yuzining 1/4 qismiga teng. 2-qismi 1-qismining yarmiga, 3-qism
1-2-qism yuzlari yig`indisining 1/3 qismiga, 4-qismi esa 1-2-3-qism yuzlari yig`indisining yarmiga
teng. 3-va 4-qismlar yuzlari yig`indisini toping?
A) 1000 m
2
B) 2000 m
2
C) 1500 m
2
D) 5000 m
2
15. Hisoblang:
9
4
9
9
7
13 −
=
A)
3
2
3 B)
18
7
4
C)
9
1
4
D)
9
3
4
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