一年级口算题:20以内的不退位减法

2022-12-16

(1)16 - 4 =

(2)12 - 2 =

(3)11 - 1 =

(4)12 - 2 =

(5)14 - 3 =

(6)13 - 2 =

(7)17 - 4 =

(8)18 - 6 =

(9)12 - 1 =

(10)15 - 4 =

(11)17 - 3 =

(12)15 - 5 =

(13)19 - 9 =

(14)15 - 2 =

(15)14 - 1 =