摘要:A.24 B.18 C.16 D.12
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计算.
(1)0-(-3).
(2)(-16)-(-18)-(-12)-24;
(3)23-36-(-76)-(-105);
(4)(-32)-87-(-72)-(-27).
(5)2.75-(-8.5)-1.5-2.75.
(6)
;
(7)
.
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计算:
(-12)+(-23)-(-33);
(-24)×(
-
+
);
31+(-28)+28+69;
27-18+(-7)-32;
(-1.2)-7-(-3.2)+(-1);
8×(-
)×
;
16÷(-2)-(-
)×(-4);
(-2)×(-7)×(-5)×(-
).
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(-12)+(-23)-(-33);
(-24)×(
| 3 |
| 4 |
| 5 |
| 6 |
| 7 |
| 12 |
31+(-28)+28+69;
27-18+(-7)-32;
(-1.2)-7-(-3.2)+(-1);
8×(-
| 4 |
| 5 |
| 1 |
| 16 |
16÷(-2)-(-
| 1 |
| 8 |
(-2)×(-7)×(-5)×(-
| 1 |
| 7 |