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苏科版七年级上册数学有理数的加减法——计算题练习

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初中数学试卷

有理数的加减法——计算题练习

1、加法计算(直接写出得数,每小题1分): (1) (-6)+(-8)= (4) (-7)+(+4)= (7) -3+2= (10) (-4)+6=

2、减法计算(直接写出得数,每小题1分): (1) (-3)-(-4)= (4) 1.3-(-2.7)= (7) 13-(-17)= (10) 0-6=

(2) (-5)-10= (5) 6.38-(-2.62)= (8) (-13)-(-17)= (11) 0-(-3)=

(3) 9-(-21)= (6) -2.5-4.5= (9) (-13)-17= (12) -4-2=

(2) (-4)+2.5= (5) (+2.5)+(-1.5)= (8) (+3)+(+2)=

(3) (-7)+(+7)= (6) 0+(-2)= (9) -7-4=

(11) ??3??1= (12) a???a?=

1??1? (15) ?1? (13) (-1.8)-(+4.5)= (14) ?(?6.25)????=??3?=?????4??4??3?

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

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(4) -3-5+7 (5) -26+43-34+17-48 (6) 91.26-293+8.74+191

(7) 12-(-18)+(-7)-15

(9) (?1.8)?(?0.7)?(?0.9)?1.3?(?0.2)

(11) (+4.7)-(-8.9)-(+7.5)+(-6)

4、加减混合计算题:

(1)15???5??3??1??4???56??????37??????26??????67?? 金戈铁制卷

(8) (?83)?(?26)?(?41)?(?15) (10) (-40)-(+28)-(-19)+(-24)-(32) (12) -6-8-2+3.54-4.72+16.46-5.28 (2) (-1.5)+??1??1???34??+(+3.75)+???42??

22??2??3?2??1??1???1?(3)???5????????????5????1? (4) 4?8???3????1????2?

?3??4??3??4?

(5) ????32?3?????3??2???24??????13???(?1.75)

(7) ????11?2???????11?4???????21?2?????3??1???34??????14??

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13?13??5??5? (6)

????47?8???????51?2???????41?4???????31?8?? (8) ????1.2?21??5?6??????56????3.4?(?1.2)

苏科版七年级上册数学有理数的加减法——计算题练习

初中数学试卷有理数的加减法——计算题练习1、加法计算(直接写出得数,每小题1分):(1)(-6)+(-8)=(4)(-7)+(+4)=(7)-3+2=(10)(-4)+6=2、减法计算(直接写出得数,每小题1分):(1)(-3)-(-4)=(4)1.3-(-2.7)=(7)13-(-1
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