二年级数学口算题：尾数是0三位数减法

【-二年级数学试卷】

二年级数学口算题：尾数是0三位数减法 

(1)250 - 170 =

(2)870 - 480 =

(3)890 - 470 =

(4)530 - 260 =

(5)380 - 130 =

(6)600 - 380 =

(7)840 - 730 =

(8)720 - 360 =

(9)780 - 710 =

(10)480 - 260 =

(11)550 - 390 =

(12)680 - 520 =

(13)340 - 270 =

(14)820 - 660 =

(15)230 - 230 =