题目内容
计算
(1)-16+(-29)-(-7)-(+11)
(2)(-81)÷
×
÷(-16)
(3)(
-
+
)×(-30)
(4)-14÷(-5)2×(-
)+|0.8-1|
(1)-16+(-29)-(-7)-(+11)
(2)(-81)÷
| 9 |
| 4 |
| 4 |
| 9 |
(3)(
| 2 |
| 5 |
| 1 |
| 15 |
| 5 |
| 6 |
(4)-14÷(-5)2×(-
| 5 |
| 3 |
(1)原式=-16-29+7-11=-56+7=-49;
(2)原式=-81×
×
×(-
)=1;
(3)原式=-12+2-25=-35;
(4)原式=-1÷25×(-
)+0.2=
+
=
.
(2)原式=-81×
| 4 |
| 9 |
| 4 |
| 9 |
| 1 |
| 16 |
(3)原式=-12+2-25=-35;
(4)原式=-1÷25×(-
| 5 |
| 3 |
| 1 |
| 15 |
| 1 |
| 5 |
| 4 |
| 15 |
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