题目内容
计算题:
(1)(-12)÷4×(-6)÷2
(2)(-
)×(-4)2-0.25×(-5)×(-4)3
(3)(-1
)-1
+(-2
)-(-3
)-(-1
)
(4)(-3)3÷2
×(-
)2+4-22×(-
)
(1)(-12)÷4×(-6)÷2
(2)(-
| 5 |
| 8 |
(3)(-1
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 2 |
| 3 |
| 4 |
| 1 |
| 4 |
(4)(-3)3÷2
| 1 |
| 4 |
| 2 |
| 3 |
| 1 |
| 3 |
(1)(-12)÷4×(-6)÷2=(-12)×
×(-6)×
=9.
(2)(-
)×(-4)2-0.25×(-5)×(-4)3
=-
×16-0.25×(-4)×(-5)×(-4)2=-10-80=-90.
(3)(-1
)-1
+(-2
)-(-3
)-(-1
)
=-1
-1
-2
+3
+1
=(-1
+1
)+(-1
-2
)+3
=0-4+3
=-
.
(4)(-3)3÷2
×(-
)2+4-22×(-
)
=-27×
×
+4-4×(-
)
=-
+4+
=0.
| 1 |
| 4 |
| 1 |
| 2 |
(2)(-
| 5 |
| 8 |
=-
| 5 |
| 8 |
(3)(-1
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 2 |
| 3 |
| 4 |
| 1 |
| 4 |
=-1
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 2 |
| 3 |
| 4 |
| 1 |
| 4 |
=(-1
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 2 |
| 1 |
| 2 |
| 3 |
| 4 |
| 3 |
| 4 |
| 1 |
| 4 |
(4)(-3)3÷2
| 1 |
| 4 |
| 2 |
| 3 |
| 1 |
| 3 |
=-27×
| 4 |
| 9 |
| 4 |
| 9 |
| 1 |
| 3 |
=-
| 16 |
| 3 |
| 4 |
| 3 |
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