3600除以50用简便方法计算 7.2除以45用简便方法怎么算

7.2除以45用简便方法怎么算  

7.2除以45用简便方法怎么算

7.2÷45
=7.2÷9÷5
=0.8÷5
=0.16

540除以45 用简便方法怎么算

540÷45
=540÷9÷5
=60÷5
=12

把540拆成450和90，然后用450和90分别除以二，结果再相加，得12

270除以45用简便方法怎么算

270÷45
=270÷9÷5
=30÷5
=6

540除以45简便方法怎么算

540÷45
=540÷（9×5）
=540÷9÷5
=60÷5
=12

1.53加23.4除以7.2用简便方法计算

1.53+23.4÷7.2
=1.53+3.25×7.2÷7.2
=1.53+3.25
=4.78

1.6加23.4除以7.2的简便方法怎么做？2.07除以0.23在除以0.45简便方法怎么做？

1.6加23.4除以7.2
1.6+23.4÷9÷0.8
=1.6+2.6÷0.8
=1.6+13÷4
=1.6+3.25
=4.85
2.07除以0.23在除以0.45
=2.07÷0.9÷0.5÷0.23
=2.3÷0.23÷0.5
=10÷0.5
=20

3600除以45？用简便方法计算

3600除以45
=(400*9)/(9*5)
=400/5
=80

7.2除以6.4简便方法

7.2÷6.4
=（0.8*7）÷（0.8*8）
=7/8