题目内容
计算下列各题:
(1)(-6)-(-10)+(-3)+|-9|
(2)-32×2-3×(-2)2
(3)-2+(-
)×(-2
)÷
(4)-14+
÷(-3)×[1-(-2)2]
(5)-99
×36(用简便方法计算)
(1)(-6)-(-10)+(-3)+|-9|
(2)-32×2-3×(-2)2
(3)-2+(-
| 3 |
| 7 |
| 2 |
| 3 |
| 4 |
| 7 |
(4)-14+
| 1 |
| 2 |
(5)-99
| 71 |
| 72 |
(1)(-6)-(-10)+(-3)+|-9|,
=-6+10-3+9,
=-9+19,
=10;
(2)-32×2-3×(-2)2,
=-9×2-3×4,
=-18-12,
=-30;
(3)-2+(-
)×(-2
)÷
,
=-2+(-
)×(-
)×
,
=-2+2,
=0;
(4)-14+
÷(-3)×[1-(-2)2],
=-1+
×(-
)×(1-4),
=-1+
×(-
)×(-3),
=-1+
,
=-
;
(5)-99
×36,
=(
-100)×36,
=
×36-100×36,
=
-3600,
=-3599
.
=-6+10-3+9,
=-9+19,
=10;
(2)-32×2-3×(-2)2,
=-9×2-3×4,
=-18-12,
=-30;
(3)-2+(-
| 3 |
| 7 |
| 2 |
| 3 |
| 4 |
| 7 |
=-2+(-
| 3 |
| 7 |
| 8 |
| 3 |
| 7 |
| 4 |
=-2+2,
=0;
(4)-14+
| 1 |
| 2 |
=-1+
| 1 |
| 2 |
| 1 |
| 3 |
=-1+
| 1 |
| 2 |
| 1 |
| 3 |
=-1+
| 1 |
| 2 |
=-
| 1 |
| 2 |
(5)-99
| 71 |
| 72 |
=(
| 1 |
| 72 |
=
| 1 |
| 72 |
=
| 1 |
| 2 |
=-3599
| 1 |
| 2 |
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