一年级口算题:整十数减一位数的减法

2022-12-16

(1)90 - 4 =

(2)70 - 5 =

(3)90 - 2 =

(4)10 - 9 =

(5)20 - 5 =

(6)40 - 8 =

(7)90 - 4 =

(8)90 - 9 =

(9)10 - 5 =

(10)10 - 5 =

(11)50 - 3 =

(12)50 - 2 =

(13)70 - 1 =

(14)90 - 6 =

(15)20 - 1 =