Question

直接寫出下面各題的得數(shù)． 23×52=	100-50 3 4 =	7 1 5 ÷6=
1 3 4 × 4 7 =	1 4 - 1 5 =	1÷3 1 2 =
5 3 10 ×7 3 4 +5 3 10 ×2.25=	20 4 5 × 1 4 =	1 1 3 ×9+9× 2 3 =

Answer 1

分析：根據(jù)分?jǐn)?shù)的四則混合運算和分?jǐn)?shù)的簡便運算進行計算即可．

解答：

解：23×52=200	100-50 3 4 =49 1 4	7 1 5 ÷6=1 1 5
1 3 4 × 4 7 =1	1 4 - 1 5 = 1 20	1÷3 1 2 = 2 7
5 3 10 ×7 3 4 +5 3 10 ×2.25=53	20 4 5 × 1 4 =5 1 5	1 1 3 ×9+9× 2 3 =18

點評：此題主要考查的是分?jǐn)?shù)的四則混合運算和分?jǐn)?shù)的簡便運算．