| 148 |
| 149 |
| 86 |
| 149 |
| 74 |
| 149 |
=39×
| 148 |
| 149 |
| 148 |
| 149 |
| 74 |
| 149 |
=（39+86）×
| 148 |
| 149 |
| 74 |
| 149 |
=125×
| 148 |
| 149 |
| 74 |
| 149 |
=250×
| 74 |
| 149 |
| 74 |
| 149 |
=（250+48）×
| 148 |
| 149 |
=298×
| 74 |
| 149 |
=148．
计算：39×148/149+148×86/149+48×74/149=_．
计算：39×
+148×
+48×
=______．
| 148 |
| 149 |
| 86 |
| 149 |
| 74 |
| 149 |
数学人气：895 ℃时间：2020-10-02 07:47:09
优质解答
39×
+148×
+48×
，
=39×
+86×
+48×
，
=（39+86）×
+48×
=125×
+48×
，
=250×
+48×
=（250+48）×
，
=298×
，
=148．
=39×
=（39+86）×
=125×
=250×
=（250+48）×
=298×
=148．
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