摘要:用简便方法计算:118×122
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计算:
(1)-6+10-3+|-9|
(2)-
-
-(-1
)-(+
)+(-
)-
(3)(-
)3×(-3)2×(-1)2007
(4){1+[
-(-
)3]×(-2)4}÷(-10-
-0.5)
(5)(
-
+
)×(-36)(用简便方法计算)
(6)39
÷(-20)(用简便方法计算)
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(1)-6+10-3+|-9|
(2)-
| 4 |
| 9 |
| 3 |
| 5 |
| 1 |
| 8 |
| 9 |
| 5 |
| 1 |
| 8 |
| 2 |
| 5 |
(3)(-
| 1 |
| 3 |
(4){1+[
| 1 |
| 16 |
| 3 |
| 4 |
| 3 |
| 4 |
(5)(
| 7 |
| 9 |
| 11 |
| 12 |
| 1 |
| 6 |
(6)39
| 55 |
| 57 |