题目内容
计算题
(1)23-17-(-7)+(-16)
(2)-3÷(-5)×
(3)(
-
-
)×(-60)
(4)(-1)100-
×[3-(-3)2].
(1)23-17-(-7)+(-16)
(2)-3÷(-5)×
| 1 |
| 5 |
(3)(
| 2 |
| 3 |
| 11 |
| 12 |
| 14 |
| 15 |
(4)(-1)100-
| 1 |
| 6 |
(1)原式=23-17+7+(-16)
=13+(-16)
=-3;
(2)原式=-3×(-
)×
=
;
(3)原式=
×(-60)-
×(-60)-
×(-60)
=-40+55+56
=61;
(4)原式=1-
×(3-9)
=1-
×(-6)
=1+1
=2.
=13+(-16)
=-3;
(2)原式=-3×(-
| 1 |
| 5 |
| 1 |
| 5 |
=
| 3 |
| 25 |
(3)原式=
| 2 |
| 3 |
| 11 |
| 12 |
| 14 |
| 15 |
=-40+55+56
=61;
(4)原式=1-
| 1 |
| 6 |
=1-
| 1 |
| 6 |
=1+1
=2.
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