题目内容
计算:
(1)4-(-3)
(2)-8÷4+3×(-5)
(3)(-12)×(
-
+
)
(4)-32-50÷(-5)2-1.
(1)4-(-3)
(2)-8÷4+3×(-5)
(3)(-12)×(
| 1 |
| 6 |
| 1 |
| 4 |
| 1 |
| 3 |
(4)-32-50÷(-5)2-1.
(1)4-(-3)=4+3=7;
(2)-8÷4+3×(-5)=-2-15=-17;
(3)(-12)×(
-
+
)=-2+3-4=-3;
(4)-32-50÷(-5)2-1=-9-50÷25-1=-9-2-1=-12;.
(2)-8÷4+3×(-5)=-2-15=-17;
(3)(-12)×(
| 1 |
| 6 |
| 1 |
| 4 |
| 1 |
| 3 |
(4)-32-50÷(-5)2-1=-9-50÷25-1=-9-2-1=-12;.
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