题目内容
计算:(1)2÷
×(-2)2
(2)(
-
-
)×36
(3)-{
+[-
-(-2)2×
]}÷(-
)
| 1 |
| 4 |
(2)(
| 7 |
| 9 |
| 5 |
| 6 |
| 3 |
| 4 |
(3)-{
| 2 |
| 3 |
| 1 |
| 6 |
| 1 |
| 2 |
| 1 |
| 12 |
(1)原式=2×4×4=32;
(2)原式=
×36-
×36-
×36=28-30-27=-2-27=-29;
(3)原式=-{
+[-
-4×
]}×(-12)
=-{
-
-2]}×(-12)
=
×12-
×12-2×12
=8-2-24
=-18.
(2)原式=
| 7 |
| 9 |
| 5 |
| 6 |
| 3 |
| 4 |
(3)原式=-{
| 2 |
| 3 |
| 1 |
| 6 |
| 1 |
| 2 |
=-{
| 2 |
| 3 |
| 1 |
| 6 |
=
| 2 |
| 3 |
| 1 |
| 6 |
=8-2-24
=-18.
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