www.5129.net > 3.5+6.5+1.7用脱式计算

3.5+6.5+1.7用脱式计算

=3.5+4.68=8.18

2.4*3.5+6.5*1.5=3.5*(1.5+0.9)+6.5*1.5=3.5*1.5+3.5*0.9+6.5*1.5=(3.5+6.5)*1.5+3.5*0.9=10*1.5+3.5*0.9=15+3.15=18.15

3.5-7+6.5=3.5+6.5-7=10-7=3

解:(3.5+1.7)÷0.16=5.2÷0.16=32.5

16.7-3.5十6.5脱式计算16.7-3.5十6.5=16.7+(6.5-3.5)=16.7+3=19.7

17.3-(3.5+7.3)=17.3-7.3-3.5=10-3.5=6.5

4.7x3.5+ 6.5=16.45+6.5=22.95

=(16.8+2.2)-(3.5+6.5)=19-10=9

(13.7-1.7)/5+3.5=12÷5+3.5=2.4+3.5=5.9

脱式计算3.5*75%+75%*6.5=(3.5+6.5)*75%=10*75%=7.5

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