摘要:计算2×5+(-1)×52-14×5+2 24
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计算:
(1)3+(-1)+(-3)+1+(-4);
(2)(+3
)+(-2
)-(-5
)-(+
);
(3)(-
)+(-
)+
+(-
);
(4)24-(-14)+(-16)+8-10;
(5)(-81)÷
×
÷(-16);
(6)(
+
-
)×(-36).
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(1)3+(-1)+(-3)+1+(-4);
(2)(+3
| 2 |
| 5 |
| 7 |
| 8 |
| 3 |
| 5 |
| 1 |
| 8 |
(3)(-
| 3 |
| 2 |
| 5 |
| 12 |
| 5 |
| 2 |
| 7 |
| 12 |
(4)24-(-14)+(-16)+8-10;
(5)(-81)÷
| 9 |
| 4 |
| 4 |
| 9 |
(6)(
| 1 |
| 2 |
| 5 |
| 6 |
| 7 |
| 12 |