题目内容
31
÷
+41
÷
+51
÷
= .
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| 3 |
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| 4 |
分析:先算除法,再按照从左向右的顺序进行计算.
解答:解:31
÷
+41
÷
+51
÷
=21+31+41
=52+41
=93.
故答案为:93.
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| 3 |
| 2 |
| 1 |
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=21+31+41
=52+41
=93.
故答案为:93.
点评:考查了分数四则混合运算,注意运算顺序和运算法则,然后再进一步计算.
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