Question

120÷4=	210÷7=	350÷5=
72-27=	11÷13=	5.6÷0.4=
15× 3 5 =	2÷0.25×7=	1 2 + 1 3 =
2.4× 5 6 =	2 1 4 × 1 27 =	21 7 10 ÷7=
1 1 2 ×8+1 1 2 ×2=	0.88×9+0.88=	3.2- 1 2 =   ．

Answer 1

分析：本題根據(jù)整數(shù)、小數(shù)、分?jǐn)?shù)的乘法、除法、加法及減法的運(yùn)算法則計(jì)算即可．
1

1

2

×8+1

1

2

×2、0.88×9+0.88可根據(jù)乘法分配律計(jì)算，

解答：解：

120÷4=30	210÷7=30	350÷5=70
72-27=45	11÷13= 11 13	5.6÷0.4=14
15× 3 5 =9	2÷0.25×7=56	1 2 + 1 3 = 5 6
2.4× 5 6 =2	2 1 4 × 1 27 = 1 12	21 7 10 ÷7=3.1
1 1 2 ×8+1 1 2 ×2=15	0.88×9+0.88=8.8	3.2- 1 2 =2.7．

點(diǎn)評：完成本題要細(xì)心分析式中數(shù)據(jù)的特點(diǎn)，能簡便計(jì)算的簡便計(jì)算．