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(1)(-4)×(-8);(2)36÷(-9);(3)482425×(-5);(4)(22)

2022-08-15 12:37:21 问答库 阅读 206 次

问题详情

(1)(-4)×(-8);
(2)36÷(-9);
(3)4824

25

×(-5);
(4)(22)×(-33)×(-4)×0;
(5)(-32)÷4×(-8);
(6)75÷(-2

3

)×(-3

2

);
(7)(-3

7

)×0.125×(-21

3

)×(-8);
(8)-32-(-2)2
(9)2×(-3)2-5÷1

2

×2;
(10)-125÷(-25)-64÷(-4).

参考答案

(1)(-4)×(-8)
=4×8
=32;

(2)36÷(-9)
=-36÷9
=-4;

(3)482425×(-5)
=(49-125)×(-5)
=49×(-5)-125×(-5)
=-245+15
=-24445;

(4)(+22)×(-33)×(-4)×0=0;

(5)(-32)÷4×(-8)
=(-8)×(-8)
=64;

(6)75÷(-23)×(-32)
=75×32×32
=6754;

(7)(-37)×0.125×(-213)×(-8)
=(-37)×18×(-73)×(-8)
=-1;

(8)-32-(-2)2
=-9-4
=-13;

(9)2×(-3)2-5÷12×2
=2×9-5×2×2
=18-20
=-2;

(10)-125÷(-25)-64÷(-4)
=5+16
=21.

考点: