概要：(1)332 - 246 = (2)947 - 236 = (3)285 + 691 = (4)166 - 120 =(5)792 + 192 = (6)785 + 937 = (7)460 + 991 = (8)150 + 144 =(9)544 - 492 = (10)727 + 517 = (11)274 - 226 = (12)455 + 695 =(13)204 - 191 = (14)224 + 944 = (15)704 + 736 =
三年级数学口算题：运算练习（十二）,http://www.guaituzi.com(1)332 - 246 = (2)947 - 236 = (3)285 + 691 = (4)166 - 120 =
(5)792 + 192 = (6)785 + 937 = (7)460 + 991 = (8)150 + 144 =
(9)544 - 492 = (10)727 + 517 = (11)274 - 226 = (12)455 + 695 =
(13)204 - 191 = (14)224 + 944 = (15)704 + 736 =
