题目内容
(1)(-
)×3÷3×(-
);
(2)-3.5÷
×(-
)×|-
|;
(3)(-2)4÷(-4)×(
)2-(-1)3;
(4)(1-
)÷3×(-7)+(-1)4.
| 1 |
| 3 |
| 1 |
| 3 |
(2)-3.5÷
| 7 |
| 8 |
| 8 |
| 7 |
| 3 |
| 64 |
(3)(-2)4÷(-4)×(
| 1 |
| 2 |
(4)(1-
| 1 |
| 2 |
(1)原式=(-
)×3×
×(-
)=
;
(2)原式=(-
)×
×(-
)×
=
;
(3)原式=16×(-
)×
+1=0;
(4)原式=
×
×(-7)+1=-
.
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 9 |
(2)原式=(-
| 7 |
| 2 |
| 8 |
| 7 |
| 8 |
| 7 |
| 3 |
| 64 |
| 3 |
| 14 |
(3)原式=16×(-
| 1 |
| 4 |
| 1 |
| 4 |
(4)原式=
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 6 |
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计算-
的倒数是( )
| 1 |
| 3 |
| A、-3 | ||
| B、-1 | ||
| C、3 | ||
D、
|