题目内容
计算题
(1)-24÷(-
)×(-7)
(2)-9+5×(-6)-(-4)2÷(-8)
(3)(-3)2-(1
)3×
-6÷|-
|
(4)-8x+(6x-5y)-2(3+y-x)
(1)-24÷(-
| 1 |
| 7 |
(2)-9+5×(-6)-(-4)2÷(-8)
(3)(-3)2-(1
| 1 |
| 2 |
| 2 |
| 9 |
| 2 |
| 3 |
(4)-8x+(6x-5y)-2(3+y-x)
(1)原式=-16×(-7)×(-7)=-224;
(2)原式=-9-30-16÷(-8)=-9-30+2=-37;
(3)原式=9-
×
-6×
=9-
-9=-
;
(4)原式=-8x+6x-5y-6-2y+2x=-7y-6.
(2)原式=-9-30-16÷(-8)=-9-30+2=-37;
(3)原式=9-
| 27 |
| 8 |
| 2 |
| 9 |
| 3 |
| 2 |
| 3 |
| 4 |
| 3 |
| 4 |
(4)原式=-8x+6x-5y-6-2y+2x=-7y-6.
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