> 有理数的加减法——计算题练习班级: 姓名: 得分: 1、加法计算(直接写出得数,每小题2分): (1) (-6)+(-8)= (2) (-4)+= (4) (-7)+(+4)= (5) (++(-= ( (3) (-7)+(+7)= (6) 0+(-2)= (7) -3+2= (10) (-4)+6= [ (8) (+3)+(+2)= (9) -7-4= (11) 31= (12) aa= 2、减法计算(转化成加法后再写出得数,每小题3分): (1) (-3)-(-4)= (2) (-5)-10= = = (3) 9-(-21)= (4) -(-= | (5) -(-= (7) 13-(-17)= [ (6) --= (8) (-13)-(-17)= (9) (-13)-17= (10) 0-(-3)= 11(11) (--(+= (12 = 43 · 3、加减混合计算题(每小题4分): (1) 4+5-11; (2) 24-(-16)+(-25)-15 解:原式= 解:原式= (3) 12-(-18)+(-7)-15 , (5) (1.8)(0.7)(0.9)1.3(0.2) ( (7) (+-(--(++(-6) (8) | (4) (83)(26)(41)(15) -40)-(+28)-(-19)+(-24)-(32)-6-8-2+-+- (6) ( 本文来源:https://www.wddqw.com/doc/48ee6e0d306c1eb91a37f111f18583d049640fbd.html