题目内容
脱式计算.(能简算的要简算)
| 29+12÷45+38 | 813÷7+17×6 | 132-613÷926-23 | 125×(56+34)+45. |
(1)29+12÷45+38,
=29+
| 4 |
| 15 |
=29
| 4 |
| 15 |
=67
| 4 |
| 15 |
(2)813÷7+17×6,
=116
| 1 |
| 7 |
=218
| 1 |
| 7 |
(3)132-613÷926-23,
=132-
| 613 |
| 926 |
=132-23-
| 613 |
| 926 |
=109-
| 613 |
| 926 |
=108
| 313 |
| 926 |
(4)125×(56+34)+45,
=125×90+45,
=11250+45,
=11295.
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