题目内容
用简便方法计算(要写出主要计算过程).
3
+4.25+6
+5.2724×(
+
)
3
| 1 |
| 6 |
| 5 |
| 6 |
| 1 |
| 4 |
| 1 |
| 8 |
(1)3
+4.25+6
+5.27
=3
+6
+4.25+5.27
=10+4.25+5.27
=19.52;
(2)24×(
+
)
=24×
+24×
=6+3
=9;
故答案为19.52;9.
| 1 |
| 6 |
| 5 |
| 6 |
=3
| 1 |
| 6 |
| 5 |
| 6 |
=10+4.25+5.27
=19.52;
(2)24×(
| 1 |
| 4 |
| 1 |
| 8 |
=24×
| 1 |
| 4 |
| 1 |
| 8 |
=6+3
=9;
故答案为19.52;9.
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