13.5*2.5-0.35*25简便运算
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13.5*2.5-0.35*25简便运算
13.5*2.5-0.35*25
=1.35*25-0.35*25
=(1.35-0.35)x25
=1x25
=25
13.5*2.5-0.35*25
=1.35*25-0.35*25
=(1.35-0.35)x25
=1x25
=25
13.5*2.5-0.35*25
=1.35*25-0.35*25
=(1.35-0.35)x25
=1x25
=25