一年级口算题:20以内的退位减法

2022-12-16

(1)16 - 6 =

(2)12 - 3 =

(3)16 - 9 =

(4)17 - 9 =

(5)11 - 9 =

(6)18 - 8 =

(7)11 - 1 =

(8)16 - 7 =

(9)16 - 6 =

(10)14 - 4 =

(11)18 - 8 =

(12)11 - 3 =

(13)17 - 7 =

(14)12 - 6 =

(15)18 - 9 =