题目内容
计算:
(1)(
+
-
)×24;
(2)-1-(1+0.5)×
÷(-4).
(1)(
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(2)-1-(1+0.5)×
| 1 |
| 3 |
(1)原式=
×24+
×24-
×24=8+6-4=10;
(2)原式=-1-1.5×
×(-
)=-1+
=-
.
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(2)原式=-1-1.5×
| 1 |
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| 1 |
| 4 |
| 1 |
| 8 |
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| 8 |
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