Question

直接寫(xiě)得數(shù)

21× 3 14 =	1 2 - 1 3 =	21 26 × 13 3 =	2× 2 3 ÷ 2 3 ×2=
1 4 + 2 5 =	12÷ 3 4 =	7 8 ÷7=	5÷7+2÷7=

Answer 1

考點(diǎn)：分?jǐn)?shù)乘法,分?jǐn)?shù)除法

專(zhuān)題：運(yùn)算順序及法則

分析：運(yùn)用小數(shù)加減及乘除法的計(jì)算法則進(jìn)行計(jì)算即可．

解答：

解：21× 3 14 =4.5	1 2 - 1 3 = 1 6	21 26 × 13 3 =3.5	2× 2 3 ÷ 2 3 ×2=4
1 4 + 2 5 =0.65	12÷ 3 4 =16	7 8 ÷7= 1 8	5÷7+2÷7=1

點(diǎn)評(píng)：在計(jì)算的過(guò)程中，注意分?jǐn)?shù)的約分化簡(jiǎn)．