题目内容

(3)(-6
3
)-(-3.6)
(2)-34÷
4
×(-
2
3
)2

(3)(
3
2
-
3
3
-
3
4
)×(-32)
(4)4+(-2)3×左-(-0.2m)÷4.
(2)(-6
5
)-(-2.6)=-5;

(2)-2÷
9
×(-
2
)2

=-2×
9
×
9

=-2;

(下)(
2
2
-
2
-
2
)×(-22)
=-
2
2
×22+
2
×22+
2
×22
=-6+四+下
=2;

(四)四+(-2)×5-(-0.28)÷四
=四-8×5+0.07
=四-四+0.07
=0.07.
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