Question

直接寫得數(shù)． 7× 1 14 =	1 6 ÷9=	1- 6 7 - 1 7 =	1 5 - 1 8 =	0.68+ 2 3 +0.32=
2 5 + 1 2 =	5 4 × 2 3 × 4 5 =	3 4 ×4÷ 3 4 ×4=	3 4 ÷ 3 8 =	1+2%=

Answer 1

考點(diǎn)：分?jǐn)?shù)乘法,分?jǐn)?shù)的加法和減法,分?jǐn)?shù)除法

專題：計(jì)算題

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

6

7

-

1

7

可根據(jù)一個(gè)數(shù)減兩個(gè)數(shù)，等于用這個(gè)數(shù)減這兩個(gè)數(shù)的和減法性質(zhì)計(jì)算．
0.68+

2

3

+0.32可根據(jù)加法交換律計(jì)算．

5

4

×

2

3

×

4

5

可根據(jù)乘法交換律計(jì)算．

3

4

×4÷

3

4

×4可根據(jù)乘法交換律計(jì)算．

解答： 解：

7× 1 14 = 1 2	1 6 ÷9= 1 54	1- 6 7 - 1 7 =0	1 5 - 1 8 = 3 40	0.68+ 2 3 +0.32= 2 3
2 5 + 1 2 = 9 10	5 4 × 2 3 × 4 5 = 2 3	3 4 ×4÷ 3 4 ×4=16	3 4 ÷ 3 8 =2	1+2%=102%

點(diǎn)評(píng)：完成本題要細(xì)心分析式中數(shù)據(jù)，能簡(jiǎn)便計(jì)算的要簡(jiǎn)便計(jì)算．