题目内容
3×
-0.5×0.25+0.3÷
=______．
| 1 |
| 4 |
| 4 |
| 5 |
3×
-0.5×0.25+0.3÷
=3×
-0.5×
+0.3×
=3×
-0.5×
+0.3×5×
=3×
-0.5×
+1.5×
=（3×-0.5+1.5）×
=4×
=1．
故答案为：1．
| 1 |
| 4 |
| 4 |
| 5 |
=3×
| 1 |
| 4 |
| 1 |
| 4 |
| 5 |
| 4 |
=3×
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
=3×
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
=（3×-0.5+1.5）×
| 1 |
| 4 |
=4×
| 1 |
| 4 |
=1．
故答案为：1．
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