Question

直接寫得數(shù) 3 5 - 1 10 =	2 7 + 4 21 =	4 9 ×2=	8 27 ÷ 8 9 =
4 5 ÷20=	1 9 ÷ 5 4 =	30× 3 10 =	2 3 × 1 2 =

Answer 1

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

專題：計(jì)算題

分析：根據(jù)分?jǐn)?shù)四則運(yùn)算的計(jì)算法則進(jìn)行計(jì)算即可．

解答： 解：

3 5 - 1 10 = 1 2	2 7 + 4 21 = 10 21	4 9 ×2= 8 9	8 27 ÷ 8 9 = 1 3
4 5 ÷20= 1 25	1 9 ÷ 5 4 = 4 45	30× 3 10 =9	2 3 × 1 2 = 1 3

點(diǎn)評(píng)：此題考查了分?jǐn)?shù)四則運(yùn)算的計(jì)算法則的運(yùn)用．