(82.5×4.63+8.25×5.37)÷82.5=?
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(82.5×4.63+8.25×5.37)÷82.5=?
(82.5×4.63+8.25×5.37)÷82.5=?
(82.5×4.63+8.25×5.37)÷82.5=?
可以先把8.25×5.37这部分根据一个因数扩大10倍,另一个因数缩小10倍,积不变的道理,转变为82.5×0.537,然后根据乘法分配律变为
82.5×(4.63+0.537)÷82.5
=82.5÷82.5×5.167
=1×5.167
=5.167
(82.5×4.63+8.25×5.37)÷82.5=?
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