4.25÷4+4.25×0.75简便运算?
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4.25÷4+4.25×0.75
=4.25×1/4+4.25×0.75
=4.25×0.25+4.25×0.75
=4.25×(0.25+0.75)
=4.25×1
=4.25
=4.25×1/4+4.25×0.75
=4.25×0.25+4.25×0.75
=4.25×(0.25+0.75)
=4.25×1
=4.25
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4.25÷4+4.25×0.75=4.25(0.25+0.75)
=4.25×1=4.25
=4.25×1=4.25
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22×0.75+25×0.75-7×0.75 =(22+25-7)×0.75 =40×0.75 =30
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