1.23×45.6×0.789÷4.56÷7.89÷0.123=(简便运算)
1个回答
1.23×45.6×0.789÷4.56÷7.89÷0.123
=1.23÷0.123×45.6÷4.56×0.789÷7.89
=10×10×0.1
=10
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