题目内容
计算:
(1)3×(-5)+(-28)÷7;
(2)-16-(-5)+23-|-
|;
(3)2×(-2)3-4×(-3)+15÷3;
(4)
。
(1)3×(-5)+(-28)÷7;
(2)-16-(-5)+23-|-
(3)2×(-2)3-4×(-3)+15÷3;
(4)
解:(1)原式=
=
=-19;
(2)原式=
=
=11.5;
(3)原式=
=
=1;
(4)原式=
=
=
=-26。
=
=-19;
(2)原式=
=
=11.5;
(3)原式=
=
=1;
(4)原式=
=
=
=-26。
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