题目内容
计算,能简算的要简算
| 4%×99+0.04 | 75%×25+175×
| (
|
(1)4%×99+0.04,
=0.04×99+0.04,
=0.04×(99+1),
=0.04×100,
=4;
(2)75%×25+175×
,
=
×25+175×
,
=
×(25+175),
=
×200,
=150;
(3)(
+
)×40,
=
×40+
×40,
=15+28,
=43.
=0.04×99+0.04,
=0.04×(99+1),
=0.04×100,
=4;
(2)75%×25+175×
| 3 |
| 4 |
=
| 3 |
| 4 |
| 3 |
| 4 |
=
| 3 |
| 4 |
=
| 3 |
| 4 |
=150;
(3)(
| 3 |
| 8 |
| 7 |
| 10 |
=
| 3 |
| 8 |
| 7 |
| 10 |
=15+28,
=43.
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