练习题(一)
用竖式计算下列各题(每小题10分) 姓名
(1) 24 + 16 + 27 = (2) 49 + 17 + 32 = (3) 15 + 26 + 44 =
(4) 33+ 29+ 25 = (5) 28 + 16 + 15 = (6) 15 + 26 + 44 =
(7) 94- 26- 27 = (8) 49 - 17 -12= (9) 78- 17 -12=
(10)67+23-52= (11)19+ 26 – 11 = (12) 75-57 +32 =
(13) 40 -12 + 17 = (14) 100-27+55= (15) 45+55-25=