加减乘除乘方,混合计算,(要写过程,看看怎么做出来的)
2个回答

1.(-5.3)+(-3.2)-(-2.5)-(+4.8)

=-5.3-3.2+2.5-4.8

=-8.5+2.5-4.8

=-6-4.8

=-10.8

2.(-4)-|-8|+|-2|-(-3)

=-4-8+2+3

=-12+5

=-7

3.-5-(-11)+2又3分之1-(-3分之2)

=-5+11+2又1/3+2/3

=6+3

=9

4.(2分之1-9分之5+6分之5-12分之7)×(-36)

=1/2×(-36)-5/9×(-36)+5/6×(-36)-7/12×(-36)

=-18+20-30+21

=2-30+21

=-28+21

=-7

5.(-8)×(-25)×(-0.02)

=200×(-0.02)

=-4

6.(-1)÷(-10又4分之3)÷(-1又3分之1)

=(-1)÷(-43/4)÷(-4/3)

=(-1)×(-4/43)×(-3/4)

=-3/43

7.8分之3÷(-4分之5)×9分之5

=3/8×(-4/5)×5/9

=(-3/10)×5/9

=-1/6