题目内容
计算:
(1)(-4)×(-3)+(-
)-23;
(2)25×0.5-(-50)÷4+25×(-3).
(1)(-4)×(-3)+(-
| 1 |
| 2 |
(2)25×0.5-(-50)÷4+25×(-3).
(1)原式=12-
-8
=4-
=
;
(2)原式=25×
+
-25×3
=25×(
+
-3)
=25×(-2)
=-50.
| 1 |
| 2 |
=4-
| 1 |
| 2 |
=
| 7 |
| 2 |
(2)原式=25×
| 1 |
| 2 |
| 25×2 |
| 4 |
=25×(
| 1 |
| 2 |
| 1 |
| 2 |
=25×(-2)
=-50.
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