几十道简单有理数的加减法试题 (附加答案)

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有理数加法应用题50道~

(-20)+(+3)-(-5)-(+7)=(-20)+(+3)+(+5)+(-7)={(-20)+(-7)}+{(+5)+(+3)}=(-27)+(+8)=-19 是这种形式的吗?

①-7/5 +(+ 1/10) 
=-1.3 
     
②90-(-3)
=93

③-0.5-(-3 )+2.75-(+7 )
=-0.75

④ (-2.8)+(+1.9)
=-0.9

1)(-9)-(-13)+(-20)+(-2)
=-18

(2) 3+13-(-7)÷6
=17又6分之1

(3) (-2)-8-14-13
=-37

(4) (-7)×(-1) ÷7+8
=9

(5) (-11)×4-(-18) ÷18
=-43

(-38)+52+118+(-62)
=70

(-32)+68+(-29)+(-68)
=-61

(-21)+251+21+(-151)
=0

12+35+(-23)+0
=14

(-6)+8+(-4)+12
=10

27+(-26)+33+(-27)
=7

39+[-23]+0+[-16]
=0

[-18]+29+[-52]+60
=153

[-3]+[-2]+[-1]+0+1+2
=9

(-301)+125+301+(-75)
=50


11/12-10/12= -1/12
=36

1/3- 7/12-7/18
=-23/36

1 -1/3-1 1/5
=7/15


10-7/10= 9又3/10
5/24+3/8
=7/8


4.39x1/13x2/3
=2

1+(-2)+(-3)+4+5+(-6)+(-7)+8+9+(-10)+(-11)+12
=0

(-7分之1)+(-7分之2)+1又7分之3
=1

39+[-23]+0+[-16]=

[-18]+29+[-52]+60=

[-3]+[-2]+[-1]+0+1+2=

[-301]+125+301+[-75]=

[-1]+[-1/2]+[39+[-23]+0+[-16]= 0

[-18]+29+[-52]+60= 19

[-3]+[-2]+[-1]+0+1+2= -3

[-301]+125+301+[-75]= 50

[-1]+[-1/2]+3/4+[-1/4]= -1

[-7/2]+5/6+[-0.5]+4/5+19/6= 1.25

[-26.54]+[-6.14]+18.54+6.14= -8

1.125+[-17/5]+[-1/8]+[-0.6]= -3+3/4]+[-1/4]=

[-7/2]+[+5/6]+[-0.5]+4/5+19/6=

[-26.54]+[-6.14]+18.54+6.14=

1.125+[-17/5]+[-1/8]+[-0.6]=

0.75+[-11/4]+0.125+12又5/7+[-3/8]=

[-4/9]+[-3/5]+[+11/8]+[+5/9]+[-1/8]+[-0.4]=39+[-23]+0+[-16]=

[-18]+29+[-52]+60=

[-3]+[-2]+[-1]+0+1+2=

[-301]+125+301+[-75]=

[-1]+[-1/2]+[+3/4]+[-1/4]=

[-7/2]+[+5/6]+[-0.5]+4/5+19/6=

[-26.54]+[-6.14]+18.54+6.14=

1.125+[-17/5]+[-1/8]+[-0.6]=

0.75+[-11/4]+0.125+12又5/7+[-3/8]=

[-4/9]+[-3/5]+[+11/8]+[+5/9]+[-1/8]+[-0.4]=

答案不要了吧 很简单的

39+[-23]+0+[-16]=0

[-18]+29+[-52]+60=19

[-3]+[-2]+[-1]+0+1+2=-3

[-301]+125+301+[-75]=
4-7= -3
0-(+3)= -3
0-(-3)= 3
(-1)-(-3) = 2
(-5)-(+3)= -8
1-4/9 = 9/5

1-7/10=10/3

8/15-5=

7-15=

2/8-5/8=

8/27-5 =

4-27 =

11/12-10/12=

16/21-1/7 =

4/ 2-(3+3 )=

1/3- 7/12-7/18=

1 -1/3-1 1/5 =

10-7/10=

5/24+3/8 =
-38)+52+118+(-62)=

(-32)+68+(-29)+(-68)=

(-21)+251+21+(-151)=

12+35+(-23)+0=

(-6)+8+(-4)+12 =

27+(-26)+33+(-27)

12+35+(-23)+0=

39+[-23]+0+[-16]=

[-18]+29+[-52]+60=

-2+3-47


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