学苑教育有理数的加减法——计算题专题
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班级: 学号: 姓名: 成绩:_________
1、加法计算(直接写出得数,每小题1分):
(1) (-6)+(-8)=
(2) (-4)+2.5=
(3) (-7)+(+7)=
(4) (-7)+(+4)=
(5) (+2.5)+(-1.5)=
(6) 0+(-2)=
(7) -3+2=
(8) (+3)+(+2)=
(9) -7-4=
(10) (-4)+6=
(11)
= (12)
=
2、减法计算(直接写出得数,每小题1分):
(1) (-3)-(-4)=
(2) (-5)-10=
(3) 9-(-21)=
(4) 1.3-(-2.7)=
(5) 6.38-(-2.62)=
(6) -2.5-4.5=
(7) 13-(-17)=
(8) (-13)-(-17)=
(9) (-13)-17=
(10) 0-6=
(11) 0-(-3)=
(12) -4-2=
(13) (-1.8)-(+4.5)= (14)
= (15)
=
3、加减混合计算题(每小题3分):
(1) 4+5-11; (2) 24-(-16)+(-25)-15 (3) -7.2+3.9-8.4+12
(4) -3-5+7 (5) -26+43-34+17-48 (6) 91.26-293+8.74+191
(7) 12-(-18)+(-7)-15 (8)
(9)
(10) (-40)-(+28)-(-19)+(-24)-(32)
(11) (+4.7)-(-8.9)-(+7.5)+(-6) (12) -6-8-2+3.54-4.72+16.46-5.28
4、加减混合计算题(前8题每小题4分,最后两题记5分):
(1)
(2) (-1.5)+
+(+3.75)+
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
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