脱式运算
9000÷72×(1.25×0.7×8)
=9000÷72×[(1.25×8)×0.7]
=9000÷72×(10×0.7)
=9000÷72×7
=125×7
=875
脱式计算即脱离竖式计算计算过程,要求,按照运算法则及运算律每个运算符号是一步运算,直到最后结果。
如,61-(1.25+2.5×0.7)
=61-(1.25+1.75)
=61-3
=58.
脱式运算
9000÷72×(1.25×0.7×8)
=9000÷72×[(1.25×8)×0.7]
=9000÷72×(10×0.7)
=9000÷72×7
=125×7
=875
脱式计算即脱离竖式计算计算过程,要求,按照运算法则及运算律每个运算符号是一步运算,直到最后结果。
如,61-(1.25+2.5×0.7)
=61-(1.25+1.75)
=61-3
=58.
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