有理数减法计算练习题

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有理数减法计算练习题

计算：(1)(-5)-(-3)

?-c 1)

(2)0-(-7)

⑶(+25)-(-13)

(4)(-11)-(+5)

⑸

(11) (- -)-(- -)

2 2

(16)10-24 (17)-5-9 ⑹(--)-(- 2

3



5 -) (21)65-49

(22)0-89

5 (26)-64-48

(27)58-0



(31)-44- (-47) (32)





(18)+25-18

⑺(-1H+1 (23)

(28)

(-45 4) -96 1 5 (13) (+18.5)-(-18.5)

(19)-35-(+16) -)

1

2

(+19)-37

(-27)-47

(33) 2



(14)-10+| - - | 3

(20) +38-(-26)

(8) 4.2-5.7

(9) 1—2 -(-2.7)

(24)

什28)-(+52)

5

(25)

(29)

(-46)-(+53)

(30)

(+77)-56

(34)

(+49)-0

(35)







丄-2〕

(10) 0-(+ —) 4 (-63)-(-84)

7

2

2 (-6 )-(-8 )

5

3

(-6)-0



(12) (-8.37)-(-2.43)

(15)-3


(36)(-6)-(+7) (37)0-(+7) (38)(-21)-(-18) (39)(+31)-(+15) (40)-

2

(41)(- 2) -(+

5) 7

(42)(+2)-(+3

1 2

1

7

)

(43) 5.2-3.7



(44) 2 2 -(-4.5) (45)- 0-(-2 4 )

3 5





(46) (- 3)-(-

3

)

(47)什 12.57)-(-8.43)

8 8



(48) (+18.5)-(-18.5)

(49)-32-| -3- | (50)-5 - -6 1

4 3 4

(51)-20-34

(56)85-39



(52)6-10 (53)+55-38 (54)-71- (+61) (55)+48-(-36)

(57)0- (-56) (58) (-24)-33 (59)

什24)-(-54)

(60)

(-5 - )-(+9 -)

4 3



(61)-41- (-50)

(62)

4

(-23

1

) -52

(63)

(+72)-42

(64)

(+90)-(-0)

(65) (-16)-0

5



2



(66) - (+12) -(-70) (67)10

—24 — 15-42 (68)-3

-

(-5)

- -(

10) (69)

嵋

-(+



1 2

5

)-(+— ) (70)5 — [(-6)-10 ]

6

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