Question

計(jì)算： 6× 5 2 =	9 10 × 4 9 =	5÷ 7 5 =	100×2=
7 8 ×4× 8 7 =	1 3 ÷3=	1 3 - 1 4 =	1 20 ÷ 1 40 =
5 8 ÷ 2 3 =	（ 1 4 + 1 2 ）×4=

Answer 1

考點(diǎn)：分?jǐn)?shù)乘法,分?jǐn)?shù)除法

專(zhuān)題：計(jì)算題

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

7

8

×4×

8

7

可根據(jù)乘法交換律計(jì)算．
（

1

4

+

1

2

）×4可根據(jù)乘法分配律計(jì)算．

解答： 解：

6× 5 2 =15	9 10 × 4 9 = 2 5	5÷ 7 5 = 25 7	100×2=200
7 8 ×4× 8 7 =4	1 3 ÷3= 1 9	1 3 - 1 4 = 1 12	1 20 ÷ 1 40 =2
5 8 ÷ 2 3 = 15 16	（ 1 4 + 1 2 ）×4=3

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