简便运算79÷115+29×511 ...
简便运算79÷115+29×5114×1.28×25353.6-（253.6+67.89）（58+127）×8+1927...
简便运算79÷115+29×511 4×1.28×25353.6-（253.6+67.89）（58+127）×8+1927
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（1）
÷
+
×
=
×
+
×
=（
+
）×
=
（2）4×1.28×25
=4×25×1.28
=100×1.28
=128
（3）353.6-（253.6+67.89）
=353.6-253.6-67.89
=100-67.89
=32.11
（4）（
+
）×8+
=
×8+
×8+
=5+
+
=5+（
+
）
=5+1
=6
| 7 |
| 9 |
| 11 |
| 5 |
| 2 |
| 9 |
| 5 |
| 11 |
=
| 7 |
| 9 |
| 5 |
| 11 |
| 2 |
| 9 |
| 5 |
| 11 |
=（
| 7 |
| 9 |
| 2 |
| 9 |
| 5 |
| 11 |
=
| 5 |
| 11 |
（2）4×1.28×25
=4×25×1.28
=100×1.28
=128
（3）353.6-（253.6+67.89）
=353.6-253.6-67.89
=100-67.89
=32.11
（4）（
| 5 |
| 8 |
| 1 |
| 27 |
| 19 |
| 27 |
=
| 5 |
| 8 |
| 1 |
| 27 |
| 19 |
| 27 |
=5+
| 8 |
| 27 |
| 19 |
| 27 |
=5+（
| 8 |
| 27 |
| 19 |
| 27 |
=5+1
=6
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