如题所述
乘法分配律
=(46+55—1)*7
=100*7
=700
=(46+55—1)*7
=100*7
=700
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第1个回答 2020-04-07
46×7+55×7-7
=46×7+55×7-7×1
=7×(46+55-1)
=7×100
=700本回答被网友采纳
=46×7+55×7-7×1
=7×(46+55-1)
=7×100
=700本回答被网友采纳
第2个回答 2020-04-07
46×7+55×7-7
=7×(46+55-1)
=7×100
=700
=7×(46+55-1)
=7×100
=700
第3个回答 2020-04-07
46*7+55*7-7=(46+55-1)*7
=100*7=700
=100*7=700