题目内容
计算
(1)(
-
+
)÷(-
)
(2)-14-(-6)+2-3×(-
).
(1)(
| 2 |
| 9 |
| 1 |
| 4 |
| 1 |
| 18 |
| 1 |
| 36 |
(2)-14-(-6)+2-3×(-
| 1 |
| 3 |
(1)原式=(
-
+
)×(-36)
=
×(-36)-
×(-36)+
×(-36)
=-8+9-2
=1-2
=-1;
(2)原式=-1+6+2+1
=8.
| 2 |
| 9 |
| 1 |
| 4 |
| 1 |
| 18 |
=
| 2 |
| 9 |
| 1 |
| 4 |
| 1 |
| 18 |
=-8+9-2
=1-2
=-1;
(2)原式=-1+6+2+1
=8.
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