递等式计算．（34+25）×40713÷1120÷5960×225÷116．
（1）（
+
）×40
=
×40+
×40
=30+16
=46；
（2）7
÷
÷
=
×
×
=
=24；
（3）60×
÷
=60×
×
=
=144．
| 3 |
| 4 |
| 2 |
| 5 |
=
| 3 |
| 4 |
| 2 |
| 5 |
=30+16
=46；
（2）7
| 1 |
| 3 |
| 11 |
| 20 |
| 5 |
| 9 |
=
| 22 |
| 3 |
| 20 |
| 11 |
| 9 |
| 5 |
=
| 22×20×9 |
| 3×11×5 |
=24；
（3）60×
| 22 |
| 5 |
| 11 |
| 6 |
=60×
| 22 |
| 5 |
| 6 |
| 11 |
=
| 60×22×6 |
| 5×11 |
=144．
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