脱式计算（能简算的要简算）（12.5+7.5）÷0.25310-10×46.18÷6+
脱式计算（能简算的要简算）（12.5+7.5）÷0.25310-10×46.18÷6+42÷85×25413.1×56+5.6×692÷23-23÷2．...
脱式计算（能简算的要简算）（12.5+7.5）÷0.25310-10×46.18÷6+42÷85×25413.1×56+5.6×692÷23-23÷2．
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（1）（12.5+7.5）÷0.25
=20÷0.25
=80
（2）310-10×4
=310-40
=270
（3）6.18÷6+4
=1.03+4
=5.03
（4）2÷
×
=2×
×
=
（5）13.1×56+5.6×69
=131×5.6+5.6×69
=（131+69）×5.6
=200×5.6
=1120
（6）2÷
-
÷2
=2×
-
×
=3-
=2
=20÷0.25
=80
（2）310-10×4
=310-40
=270
（3）6.18÷6+4
=1.03+4
=5.03
（4）2÷
| 8 |
| 5 |
| 25 |
| 4 |
=2×
| 5 |
| 8 |
| 25 |
| 4 |
=
| 125 |
| 16 |
（5）13.1×56+5.6×69
=131×5.6+5.6×69
=（131+69）×5.6
=200×5.6
=1120
（6）2÷
| 2 |
| 3 |
| 2 |
| 3 |
=2×
| 3 |
| 2 |
| 2 |
| 3 |
| 1 |
| 2 |
=3-
| 1 |
| 3 |
=2
| 2 |
| 3 |
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