有理数的加减法专项提高训练题

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有理数的加减法专项提升训练题目

1、加法计算 (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) ()31-+= (12) ()a a +-=

2、减法计算 (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) 1143⎛⎫⎛⎫--- ⎪ ⎪

⎝⎭⎝⎭

= (5) 1( 6.25)34⎛⎫--- ⎪⎝⎭= 3、加减混合计算题

(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) )15()41()26()83(++-+++-

(9) )2.0(3.1)9.0()7.0()8.1(-++-+++- (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

(1)53141553266767⎛⎫⎛⎫⎛⎫⎛⎫-+-++--+ ⎪ ⎪ ⎪ ⎪

⎝⎭⎝⎭⎝⎭⎝⎭

(2) (-1.5)+134⎛⎫+ ⎪⎝⎭+(+3.75)+142⎛⎫

- ⎪⎝⎭

(3)()⎪⎭⎫ ⎝⎛--++⎪⎭⎫ ⎝⎛-+⎪⎭⎫ ⎝⎛+-⎪⎭⎫ ⎝⎛-41153141325 (4) 222348312131355⎛⎫⎛⎫⎛⎫+-++-+- ⎪ ⎪ ⎪⎝⎭⎝⎭⎝⎭

(5) )75.1(321432323+-⎪⎭⎫

⎝⎛--⎪⎭⎫ ⎝⎛--⎪⎭⎫ ⎝⎛- (6)

711145438248⎛⎫⎛⎫⎛⎫⎛⎫

---+--+ ⎪ ⎪ ⎪ ⎪⎝⎭⎝⎭⎝⎭⎝⎭

(7) ⎪⎭⎫ ⎝⎛+-⎪⎭⎫ ⎝⎛--⎪⎭⎫ ⎝

⎛-+⎪⎭⎫ ⎝⎛++⎪⎭⎫ ⎝⎛-411433212411211 (8) 151.225 3.4( 1.2)66⎛⎫⎛⎫-+------ ⎪ ⎪⎝⎭⎝⎭ (9) 11111223

89910+++

+⨯⨯⨯⨯ (10) 11

11

1335

979999101

++

+

+

⨯⨯⨯⨯

-5-9+1; (2)10-17+2; (3)-3-4+19-10;

(4)-8+12-16-22 (5)(+3.41)-(-0.59) (6)⎪⎭

⎫ ⎝⎛--⎪⎭⎫ ⎝⎛

-75137413

(1)(—36)—(—25)—(+36)+(+72); (2)(—8)—(—3)+(+5)—(+9); (3))3

2

()41()61(21+----+-; (4) ()[]()5.13.42.56.34.1---+--;

(1) 13-(-18)+(-7)-15; (2)-28-(-19)+(-24)-(-32);

(3)4.7-(-8.9)-7.5+(-6); ⑷(-0.6)+1.7+(+0.6 )+(-1.7 )+(-8 )

(13)(- 7)-(+ 5)+(- 4)-(- 10) (14)- 4.2 + 5.7 - 8.4 + 10

(14)(15)12-(- 18)-(-7)-15 (16)4、4.7 -(- 8.9)- 7.5+(- 6) (17)- 41 + 65 - 43 + 6

1

(18)6、- 70 - 28 -(- 19)+ 24 -( - 12)

(19)- 3.3 + 5.4 - 2.8 - ( - 7.5) (20)( + 23) + ( - 27) + ( + 9) + ( - 5)

(21)(0.7) + ( - 0.9) + ( - 1.8) + 1.3 +(- 0.2) (22)(- 0.5)+ 343

+ 2.75 +(- 52

1)

(23)(- 11)-(- 8)+(+ 4)+ 9 (24)11+(- 13)+ 19 +(- 17)

(25)13 -(- 19)+(- 8)- 16 (26)- 3.3 + 4.6 - 6.5 + 10

(27)(- 9.9)+ 1098 + 9.9 +(- 109

8) (28)(- 20.75)- 3.25 +(- 4.25)+ 19.75

(29)(- 20)+(+3)-(- 5)-(+ 7) (30)- 23 + 50 +(- 37)+ 20

(1) (-17)-4+(-15)-16 (2) (-1)+4-(-9)+5

(3) (-14)+(-12)+11-(-5) (4) (-7)-(-4)-18-(-3)

(5) 0-7+(-9)+(-1) (6) 18-(-5)-8-10

(7) 5+6+3+2 (8) 4+17-13-(-7)

(9) (-5)-3+(-11)-18 (10) (-10)-(-7)-(-2)+(-10)

(11) 18-18+20-4 (12) 2+(-15)-(-5)+18

(13) (-13)+15+(-1)-0 (14) (-2)-(-2)-(-8)-10

(15) 1-(-15)+(-13)+(-3) (16) (-6)-(-13)-(-6)-2

(17) (-6)+(-7)+5+6 (18) (-15)+(-17)-13-(-18)

(19) (-7)-(-6)+(-9)+10 (20) 20-12-(-18)-12

(21) 20+(-14)+(-15)-14 (22) 12+9-(-5)+7

(23) 4-1+4-(-10) (24) (-2)-5-6+17