35乘以138分之37加37乘以138分之34怎么简便运算?
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![35乘以138分之37加37乘以138分之34怎么简便运算?](/uploads/image/z/242010-18-0.jpg?t=35%E4%B9%98%E4%BB%A5138%E5%88%86%E4%B9%8B37%E5%8A%A037%E4%B9%98%E4%BB%A5138%E5%88%86%E4%B9%8B34%E6%80%8E%E4%B9%88%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97%3F)
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35乘以138分之37加37乘以138分之34怎么简便运算?
35乘以138分之37加37乘以138分之34怎么简便运算?
35乘以138分之37加37乘以138分之34怎么简便运算?
35*(37/138)+37*(34/138)
=(37/138)*35+(37/138)*34
=(37/138)*(35+34)
=(37/138)*69
=37*(69/138)
=37*(1/2)
=37/2
.1楼我无力吐槽.
35×(37/138)+37×(34/138)=(35×37+37×34)/138=37(35+34)/138=37/2
同第二个
35*(37/138)+37*(34/138)=(35*37-37*34)/138=37(35-34)/138=37/138