题目内容
计算:
(1)-24×(
+
-
);
(2)-10+8÷(-2)2-(-4)×(-3)
(1)-24×(
| 1 |
| 2 |
| 2 |
| 3 |
| 5 |
| 6 |
(2)-10+8÷(-2)2-(-4)×(-3)
(1)原式=-24×(
+
-
),
=(-24)×
+(-24)×
-(-24)×
,
=-12-16+20,
=-28+20,
=-8;
(2)-10+8÷(-2)2-(-4)×(-3),
=-10+8÷4-12,
=-10+2-12,
=-20.
| 1 |
| 2 |
| 2 |
| 3 |
| 5 |
| 6 |
=(-24)×
| 1 |
| 2 |
| 2 |
| 3 |
| 5 |
| 6 |
=-12-16+20,
=-28+20,
=-8;
(2)-10+8÷(-2)2-(-4)×(-3),
=-10+8÷4-12,
=-10+2-12,
=-20.
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