题目内容
计算:
(1)-32-(-3)2+(-5)3×(-
)-0.32÷|-0.9|;
(2)(-47.65)×2
+(-37.15)×(-2
)+10.5×(-7
).
(1)-32-(-3)2+(-5)3×(-
4 |
5 |
(2)(-47.65)×2
6 |
11 |
6 |
11 |
5 |
11 |
(1)原式=-9-9+(-125)×(-
)-0.09÷0.9
=-9-9+100-0.1
=81.9;
(2)原式=(-47.65)×2
+(-37.15)×(-2
)+10.5×(-10+2
)
=(-47.65+37.15+10.5)×2
+10.5×(-10)
=0-105
=-105.
4 |
5 |
=-9-9+100-0.1
=81.9;
(2)原式=(-47.65)×2
6 |
11 |
6 |
11 |
6 |
11 |
=(-47.65+37.15+10.5)×2
6 |
11 |
=0-105
=-105.
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