有理数的加减法训练题(有理数加减法计算题100道及答案)
有理数的加减法训练题(有理数加减法计算题100道及答案)

有理数的加减法

1、在列括号里填上适当的数

(1)8-(-5)+(-4)-3=8+(5)+(-4)+(-3)

(2)(-1/2)+(-1/3)-(-1/4)-(-1/5)=

(- 1/2)+(-1/3)+(1/4)+(1/5)

2、计算

(1)(+6)-(-3)+(-2)-(+6)

=6+3-2-6

=1

(2)(+4.2)-(-5.8)-3

=4.2+5.8-3

=10-3

=7

(3)9-(-0.3)+(-6)-(-4.7)

=9+0.3-6+4.7

=15-6

=9

(4)(+1/3)-(+5/6)+(-1/6)-(-2/3)

=1/3-5/6-1/6+2/3

=1-2/3

=1/3

3、计算

(1)-4.2+5.7-8.4+10

=-4.2-8.4+5.7+10

=-12.6+5.7+10

=-6.9+10

=3.1

(2)6.1-3.7-4.9+1.8

=6.1-(3.7+4.9-1.8)

=6.1-6.8

=-0.3

(3)1/3-2/3+1

=-1/3+1

=2/3

(4)-1/4+5/6+2/3-1/2

=-1/4-2/4+6/5+6/4

=-0.75+1.5

=3/4(0.75)

4、-3,+5与-7的和比它们的绝对值的和小多少?

|-3|<|+5|<|-7|

5、10名学生参加体检,体重的测量结果如下(单位:kg):

42,47.5,37,48.5,45,40,38.5,38,42.5,38。这10名学生的平均体重为多少?

(42+47.5+37+48.5+45+40+38.5+38+42.5+38)/10

=417/10

=41.7kg 1、在列括号里填上适当的数

(1)8-(-5)+(-4)-3=8+(5)+(-4)+(-3)

(2)(-1/2)+(-1/3)-(-1/4)-(-1/5)=

(- 1/2)+(-1/3)+(1/4)+(1/5)

2、计算

(1)(+6)-(-3)+(-2)-(+6)

=6+3-2-6

=1

(2)(+4.2)-(-5.8)-3

=4.2+5.8-3

=10-3

=7

(3)9-(-0.3)+(-6)-(-4.7)

=9+0.3-6+4.7

=15-6

=9

(4)(+1/3)-(+5/6)+(-1/6)-(-2/3)

=1/3-5/6-1/6+2/3

=1-2/3

=1/3

3、计算

(1)-4.2+5.7-8.4+10

=-4.2-8.4+5.7+10

=-12.6+5.7+10

=-6.9+10

=3.1

(2)6.1-3.7-4.9+1.8

=6.1-(3.7+4.9-1.8)

=6.1-6.8

=-0.3

(3)1/3-2/3+1

=-1/3+1

=2/3

(4)-1/4+5/6+2/3-1/2

=-1/4-2/4+6/5+6/4

=-0.75+1.5

=3/4(0.75)

4、-3,+5与-7的和比它们的绝对值的和小多少?

|-3|<|+5|<|-7|

5、10名学生参加体检,体重的测量结果如下(单位:kg):

42,47.5,37,48.5,45,40,38.5,38,42.5,38。这10名学生的平均体重为多少?

(42+47.5+37+48.5+45+40+38.5+38+42.5+38)/10

=417/10

=41.7kg

求30道四数以上的有理数加减法计算题

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)= (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) ??aa??= 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) 1143???????????????= (15) 1(6.25)34?????????= 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

有理数加减法计算题100道及答案

七年级有理数加减法混合计算题50道

(sinα +cosα)²=sin²α+cos²α+2sinα *cosα=1+2sinα *cosα=(1-√3)²/4=1-(√3)/2 sinα *cosα=-(√3)/4 sinα[(1-√3)/2-sinα]=-(√3)/4 sin²α-(1/2-√3/2)sinα-√3/4=0 (sinα+√3/2)(sinα-1/2)=0 sinα=1/2 或sinα=-√3/2(不在0

七年级有理数加减混合计算题

有理数的加减混合运算(乘除扔了)

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

(2) 3+13-(-7)/6

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

(4) (-7)*(-1)/7+8

(5) (-11)*4-(-18)/18

(6) 4+(-11)-1/(-3)

(7) (-17)-6-16/(-18)

(8) 5/7+(-1)-(-8)

(9) (-1)*(-1)+15+1

(10) 3-(-5)*3/(-15)

(11) 6*(-14)-(-14)+(-13)

(12) (-15)*(-13)-(-17)-(-4)

(13) (-20)/13/(-7)+11

(14) 8+(-1)/7+(-4)

(15) (-13)-(-9)*16*(-12)

(16) (-1)+4*19+(-2)

(17) (-17)*(-9)-20+(-6)

(18) (-5)/12-(-16)*(-15)

(19) (-3)-13*(-5)*13

(20) 5+(-7)+17-10

(21) (-10)-(-16)-13*(-16)

(22) (-14)+4-19-12

(23) 5*13/14/(-10)

(24) 3*1*17/(-10)

(25) 6+(-12)+15-(-15)

(26) 15/9/13+(-7)

(27) 2/(-10)*1-(-8)

(28) 11/(-19)+(-14)-5

(29) 19-16+18/(-11)

(30) (-1)/19+(-5)+1

(31) (-5)+19/10*(-5)

(32) 11/(-17)*(-13)*12

(33) (-8)+(-10)/8*17

(34) 7-(-12)/(-1)+(-12)

(35) 12+12-19+20

(36) (-13)*(-11)*20+(-4)

(37) 17/(-2)-2*(-19)

(38) 1-12*(-16)+(-9)

(39) 13*(-14)-15/20

(40) (-15)*(-13)-6/(-9)

(41) 15*(-1)/12+7

(42) (-13)+(-16)+(-14)-(-6)

(43) 14*12*(-20)*(-13)

(44) 17-9-20+(-10)

(45) 12/(-14)+(-14)+(-2)

(46) (-15)-12/(-17)-(-3)

(47) 6-3/9/(-8)

(48) (-20)*(-15)*10*(-4)

(49) 7/(-2)*(-3)/(-14)

(50) 13/2*18*(-7)

(51) 13*5+6+3

(52) (-15)/5/3+(-20)

(53) 19*4+17-4

(54) (-11)-(-6)*(-4)*(-9)

(55) (-16)+16-(-8)*(-13)

(56) 16/(-1)/(-10)/(-20)

(57) (-1)-(-9)-9/(-19)

(58) 13*20*(-13)*4

(59) 11*(-6)-3+18

(60) (-20)+(-12)+(-1)+(-12)

(61) (-19)-3*(-13)*4

(62) (-13)/3-5*8

(63) (-15)/1+17*(-18)

(64) (-13)/3/19/8

(65) (-3)/(-13)/20*5

(66) 3/12/(-18)-18

(67) 5*(-19)/13+(-6)

(68) 4+4*(-19)-11

(69) (-2)+17-5+(-1)

(70) 9+(-3)*19*(-19)

(71) (-12)-(-6)+17/2

(72) 15*(-5)-(-3)/5

(73) (-10)*2/(-1)/4

(74) (-8)*16/(-6)+4

(75) 2-11+12+10

(76) (-3)+(-20)*(-7)*(-9)

(77) (-15)+8-17/7

(78) (-14)*10+18*2

(79) (-7)+2-(-17)*19

(80) (-7)/18/1+1

(81) 11/(-9)-(-16)/17

(82) 15+5*6-(-8)

(83) (-13)*(-18)+18/(-6)

(84) 11-(-1)/11*(-6)

(85) (-4)+(-12)+19/6

(86) (-18)/(-1)/(-19)+2

(87) 9*(-8)*(-6)/11

(88) 20*(-3)*(-5)+1

(89) (-18)-2+(-11)/20

(90) 15*1+4*17

(91) 1-10+(-14)/(-1)

(92) 10+(-4)*(-19)+(-12)

(93) 15/14/5*7

(94) 8+(-13)/3+1

(95) (-14)+6+(-2)*(-14)

(96) (-5)/(-13)/4+7

(97) (-15)/(-2)/(-12)+(-2)

(98) (-17)-(-20)-20*(-10)

(99) (-7)-10-13/3

(100) (-20)+(-18)+11+9

答案:

1 -18

2 103/6

3 -37

4 9

5 -43

6 -(20/3)

7 -(199/9)

8 54/7

9 17

10 2

11 -83

12 216

13 1021/91

14 27/7

15 -1741

16 73

17 127

18 -(2885/12)

19 842

20 5

21 214

22 -41

23 -(13/28)

24 -(51/10)

25 24

26 -(268/39)

27 39/5

28 -(372/19)

29 15/11

30 -(77/19)

31 -(29/2)

32 1716/17

33 -(117/4)

34 -17

35 25

36 2856

37 59/2

38 184

39 -(731/4)

40 587/3

41 23/4

42 -37

43 43680

44 -22

45 -(118/7)

46 -(192/17)

47 145/24

48 -12000

49 -(3/4)

50 -819

51 74

52 -21

53 89

54 205

55 -104

56 -(2/25)

57 161/19

58 -13520

59 -51

60 -45

61 137

62 -(133/3)

63 -321

64 -(13/456)

65 3/52

66 -(1297/72)

67 -(173/13)

68 -83

69 9

70 1092

71 5/2

72 -(372/5)

73 5

74 76/3

75 13

76 -1263

77 -(66/7)

78 -104

79 318

80 11/18

81 -(43/153)

82 53

83 231

84 115/11

85 -(77/6)

86 20/19

87 432/11

88 301

89 -(411/20)

90 83

91 5

92 74

93 3/2

94 14/3

95 20

96 369/52

97 -(21/8)

98 203

99 -(64/3)

100 -18

有理数加减法100题

七年级有理数加减法混合计算题50道

(sinα +cosα)²=sin²α+cos²α+2sinα *cosα=1+2sinα *cosα=(1-√3)²/4=1-(√3)/2 sinα *cosα=-(√3)/4 sinα[(1-√3)/2-sinα]=-(√3)/4 sin²α-(1/2-√3/2)sinα-√3/4=0 (sinα+√3/2)(sinα-1/2)=0 sinα=1/2 或sinα=-√3/2(不在0

七年级有理数加减混合计算题

有理数的加减混合运算(乘除扔了)

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

(2) 3+13-(-7)/6

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

(4) (-7)*(-1)/7+8

(5) (-11)*4-(-18)/18

(6) 4+(-11)-1/(-3)

(7) (-17)-6-16/(-18)

(8) 5/7+(-1)-(-8)

(9) (-1)*(-1)+15+1

(10) 3-(-5)*3/(-15)

(11) 6*(-14)-(-14)+(-13)

(12) (-15)*(-13)-(-17)-(-4)

(13) (-20)/13/(-7)+11

(14) 8+(-1)/7+(-4)

(15) (-13)-(-9)*16*(-12)

(16) (-1)+4*19+(-2)

(17) (-17)*(-9)-20+(-6)

(18) (-5)/12-(-16)*(-15)

(19) (-3)-13*(-5)*13

(20) 5+(-7)+17-10

(21) (-10)-(-16)-13*(-16)

(22) (-14)+4-19-12

(23) 5*13/14/(-10)

(24) 3*1*17/(-10)

(25) 6+(-12)+15-(-15)

(26) 15/9/13+(-7)

(27) 2/(-10)*1-(-8)

(28) 11/(-19)+(-14)-5

(29) 19-16+18/(-11)

(30) (-1)/19+(-5)+1

(31) (-5)+19/10*(-5)

(32) 11/(-17)*(-13)*12

(33) (-8)+(-10)/8*17

(34) 7-(-12)/(-1)+(-12)

(35) 12+12-19+20

(36) (-13)*(-11)*20+(-4)

(37) 17/(-2)-2*(-19)

(38) 1-12*(-16)+(-9)

(39) 13*(-14)-15/20

(40) (-15)*(-13)-6/(-9)

(41) 15*(-1)/12+7

(42) (-13)+(-16)+(-14)-(-6)

(43) 14*12*(-20)*(-13)

(44) 17-9-20+(-10)

(45) 12/(-14)+(-14)+(-2)

(46) (-15)-12/(-17)-(-3)

(47) 6-3/9/(-8)

(48) (-20)*(-15)*10*(-4)

(49) 7/(-2)*(-3)/(-14)

(50) 13/2*18*(-7)

(51) 13*5+6+3

(52) (-15)/5/3+(-20)

(53) 19*4+17-4

(54) (-11)-(-6)*(-4)*(-9)

(55) (-16)+16-(-8)*(-13)

(56) 16/(-1)/(-10)/(-20)

(57) (-1)-(-9)-9/(-19)

(58) 13*20*(-13)*4

(59) 11*(-6)-3+18

(60) (-20)+(-12)+(-1)+(-12)

(61) (-19)-3*(-13)*4

(62) (-13)/3-5*8

(63) (-15)/1+17*(-18)

(64) (-13)/3/19/8

(65) (-3)/(-13)/20*5

(66) 3/12/(-18)-18

(67) 5*(-19)/13+(-6)

(68) 4+4*(-19)-11

(69) (-2)+17-5+(-1)

(70) 9+(-3)*19*(-19)

(71) (-12)-(-6)+17/2

(72) 15*(-5)-(-3)/5

(73) (-10)*2/(-1)/4

(74) (-8)*16/(-6)+4

(75) 2-11+12+10

(76) (-3)+(-20)*(-7)*(-9)

(77) (-15)+8-17/7

(78) (-14)*10+18*2

(79) (-7)+2-(-17)*19

(80) (-7)/18/1+1

(81) 11/(-9)-(-16)/17

(82) 15+5*6-(-8)

(83) (-13)*(-18)+18/(-6)

(84) 11-(-1)/11*(-6)

(85) (-4)+(-12)+19/6

(86) (-18)/(-1)/(-19)+2

(87) 9*(-8)*(-6)/11

(88) 20*(-3)*(-5)+1

(89) (-18)-2+(-11)/20

(90) 15*1+4*17

(91) 1-10+(-14)/(-1)

(92) 10+(-4)*(-19)+(-12)

(93) 15/14/5*7

(94) 8+(-13)/3+1

(95) (-14)+6+(-2)*(-14)

(96) (-5)/(-13)/4+7

(97) (-15)/(-2)/(-12)+(-2)

(98) (-17)-(-20)-20*(-10)

(99) (-7)-10-13/3

(100) (-20)+(-18)+11+9

答案:

1 -18

2 103/6

3 -37

4 9

5 -43

6 -(20/3)

7 -(199/9)

8 54/7

9 17

10 2

11 -83

12 216

13 1021/91

14 27/7

15 -1741

16 73

17 127

18 -(2885/12)

19 842

20 5

21 214

22 -41

23 -(13/28)

24 -(51/10)

25 24

26 -(268/39)

27 39/5

28 -(372/19)

29 15/11

30 -(77/19)

31 -(29/2)

32 1716/17

33 -(117/4)

34 -17

35 25

36 2856

37 59/2

38 184

39 -(731/4)

40 587/3

41 23/4

42 -37

43 43680

44 -22

45 -(118/7)

46 -(192/17)

47 145/24

48 -12000

49 -(3/4)

50 -819

51 74

52 -21

53 89

54 205

55 -104

56 -(2/25)

57 161/19

58 -13520

59 -51

60 -45

61 137

62 -(133/3)

63 -321

64 -(13/456)

65 3/52

66 -(1297/72)

67 -(173/13)

68 -83

69 9

70 1092

71 5/2

72 -(372/5)

73 5

74 76/3

75 13

76 -1263

77 -(66/7)

78 -104

79 318

80 11/18

81 -(43/153)

82 53

83 231

84 115/11

85 -(77/6)

86 20/19

87 432/11

88 301

89 -(411/20)

90 83

91 5

92 74

93 3/2

94 14/3

95 20

96 369/52

97 -(21/8)

98 203

99 -(64/3)

100 -18

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有理数的加减法

1、在列括号里填上适当的数

(1)8-(-5)+(-4)-3=8+(5)+(-4)+(-3)

(2)(-1/2)+(-1/3)-(-1/4)-(-1/5)=

(- 1/2)+(-1/3)+(1/4)+(1/5)

2、计算

(1)(+6)-(-3)+(-2)-(+6)

=6+3-2-6

=1

(2)(+4.2)-(-5.8)-3

=4.2+5.8-3

=10-3

=7

(3)9-(-0.3)+(-6)-(-4.7)

=9+0.3-6+4.7

=15-6

=9

(4)(+1/3)-(+5/6)+(-1/6)-(-2/3)

=1/3-5/6-1/6+2/3

=1-2/3

=1/3

3、计算

(1)-4.2+5.7-8.4+10

=-4.2-8.4+5.7+10

=-12.6+5.7+10

=-6.9+10

=3.1

(2)6.1-3.7-4.9+1.8

=6.1-(3.7+4.9-1.8)

=6.1-6.8

=-0.3

(3)1/3-2/3+1

=-1/3+1

=2/3

(4)-1/4+5/6+2/3-1/2

=-1/4-2/4+6/5+6/4

=-0.75+1.5

=3/4(0.75)

4、-3,+5与-7的和比它们的绝对值的和小多少?

|-3|<|+5|<|-7|

5、10名学生参加体检,体重的测量结果如下(单位:kg):

42,47.5,37,48.5,45,40,38.5,38,42.5,38。这10名学生的平均体重为多少?

(42+47.5+37+48.5+45+40+38.5+38+42.5+38)/10

=417/10

=41.7kg 1、在列括号里填上适当的数

(1)8-(-5)+(-4)-3=8+(5)+(-4)+(-3)

(2)(-1/2)+(-1/3)-(-1/4)-(-1/5)=

(- 1/2)+(-1/3)+(1/4)+(1/5)

2、计算

(1)(+6)-(-3)+(-2)-(+6)

=6+3-2-6

=1

(2)(+4.2)-(-5.8)-3

=4.2+5.8-3

=10-3

=7

(3)9-(-0.3)+(-6)-(-4.7)

=9+0.3-6+4.7

=15-6

=9

(4)(+1/3)-(+5/6)+(-1/6)-(-2/3)

=1/3-5/6-1/6+2/3

=1-2/3

=1/3

3、计算

(1)-4.2+5.7-8.4+10

=-4.2-8.4+5.7+10

=-12.6+5.7+10

=-6.9+10

=3.1

(2)6.1-3.7-4.9+1.8

=6.1-(3.7+4.9-1.8)

=6.1-6.8

=-0.3

(3)1/3-2/3+1

=-1/3+1

=2/3

(4)-1/4+5/6+2/3-1/2

=-1/4-2/4+6/5+6/4

=-0.75+1.5

=3/4(0.75)

4、-3,+5与-7的和比它们的绝对值的和小多少?

|-3|<|+5|<|-7|

5、10名学生参加体检,体重的测量结果如下(单位:kg):

42,47.5,37,48.5,45,40,38.5,38,42.5,38。这10名学生的平均体重为多少?

(42+47.5+37+48.5+45+40+38.5+38+42.5+38)/10

=417/10

=41.7kg

求30道四数以上的有理数加减法计算题

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)= (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) ??aa??= 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) 1143???????????????= (15) 1(6.25)34?????????= 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

有理数加减法计算题100道及答案

七年级有理数加减法混合计算题50道

(sinα +cosα)²=sin²α+cos²α+2sinα *cosα=1+2sinα *cosα=(1-√3)²/4=1-(√3)/2 sinα *cosα=-(√3)/4 sinα[(1-√3)/2-sinα]=-(√3)/4 sin²α-(1/2-√3/2)sinα-√3/4=0 (sinα+√3/2)(sinα-1/2)=0 sinα=1/2 或sinα=-√3/2(不在0

七年级有理数加减混合计算题

有理数的加减混合运算(乘除扔了)

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

(2) 3+13-(-7)/6

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

(4) (-7)*(-1)/7+8

(5) (-11)*4-(-18)/18

(6) 4+(-11)-1/(-3)

(7) (-17)-6-16/(-18)

(8) 5/7+(-1)-(-8)

(9) (-1)*(-1)+15+1

(10) 3-(-5)*3/(-15)

(11) 6*(-14)-(-14)+(-13)

(12) (-15)*(-13)-(-17)-(-4)

(13) (-20)/13/(-7)+11

(14) 8+(-1)/7+(-4)

(15) (-13)-(-9)*16*(-12)

(16) (-1)+4*19+(-2)

(17) (-17)*(-9)-20+(-6)

(18) (-5)/12-(-16)*(-15)

(19) (-3)-13*(-5)*13

(20) 5+(-7)+17-10

(21) (-10)-(-16)-13*(-16)

(22) (-14)+4-19-12

(23) 5*13/14/(-10)

(24) 3*1*17/(-10)

(25) 6+(-12)+15-(-15)

(26) 15/9/13+(-7)

(27) 2/(-10)*1-(-8)

(28) 11/(-19)+(-14)-5

(29) 19-16+18/(-11)

(30) (-1)/19+(-5)+1

(31) (-5)+19/10*(-5)

(32) 11/(-17)*(-13)*12

(33) (-8)+(-10)/8*17

(34) 7-(-12)/(-1)+(-12)

(35) 12+12-19+20

(36) (-13)*(-11)*20+(-4)

(37) 17/(-2)-2*(-19)

(38) 1-12*(-16)+(-9)

(39) 13*(-14)-15/20

(40) (-15)*(-13)-6/(-9)

(41) 15*(-1)/12+7

(42) (-13)+(-16)+(-14)-(-6)

(43) 14*12*(-20)*(-13)

(44) 17-9-20+(-10)

(45) 12/(-14)+(-14)+(-2)

(46) (-15)-12/(-17)-(-3)

(47) 6-3/9/(-8)

(48) (-20)*(-15)*10*(-4)

(49) 7/(-2)*(-3)/(-14)

(50) 13/2*18*(-7)

(51) 13*5+6+3

(52) (-15)/5/3+(-20)

(53) 19*4+17-4

(54) (-11)-(-6)*(-4)*(-9)

(55) (-16)+16-(-8)*(-13)

(56) 16/(-1)/(-10)/(-20)

(57) (-1)-(-9)-9/(-19)

(58) 13*20*(-13)*4

(59) 11*(-6)-3+18

(60) (-20)+(-12)+(-1)+(-12)

(61) (-19)-3*(-13)*4

(62) (-13)/3-5*8

(63) (-15)/1+17*(-18)

(64) (-13)/3/19/8

(65) (-3)/(-13)/20*5

(66) 3/12/(-18)-18

(67) 5*(-19)/13+(-6)

(68) 4+4*(-19)-11

(69) (-2)+17-5+(-1)

(70) 9+(-3)*19*(-19)

(71) (-12)-(-6)+17/2

(72) 15*(-5)-(-3)/5

(73) (-10)*2/(-1)/4

(74) (-8)*16/(-6)+4

(75) 2-11+12+10

(76) (-3)+(-20)*(-7)*(-9)

(77) (-15)+8-17/7

(78) (-14)*10+18*2

(79) (-7)+2-(-17)*19

(80) (-7)/18/1+1

(81) 11/(-9)-(-16)/17

(82) 15+5*6-(-8)

(83) (-13)*(-18)+18/(-6)

(84) 11-(-1)/11*(-6)

(85) (-4)+(-12)+19/6

(86) (-18)/(-1)/(-19)+2

(87) 9*(-8)*(-6)/11

(88) 20*(-3)*(-5)+1

(89) (-18)-2+(-11)/20

(90) 15*1+4*17

(91) 1-10+(-14)/(-1)

(92) 10+(-4)*(-19)+(-12)

(93) 15/14/5*7

(94) 8+(-13)/3+1

(95) (-14)+6+(-2)*(-14)

(96) (-5)/(-13)/4+7

(97) (-15)/(-2)/(-12)+(-2)

(98) (-17)-(-20)-20*(-10)

(99) (-7)-10-13/3

(100) (-20)+(-18)+11+9

答案:

1 -18

2 103/6

3 -37

4 9

5 -43

6 -(20/3)

7 -(199/9)

8 54/7

9 17

10 2

11 -83

12 216

13 1021/91

14 27/7

15 -1741

16 73

17 127

18 -(2885/12)

19 842

20 5

21 214

22 -41

23 -(13/28)

24 -(51/10)

25 24

26 -(268/39)

27 39/5

28 -(372/19)

29 15/11

30 -(77/19)

31 -(29/2)

32 1716/17

33 -(117/4)

34 -17

35 25

36 2856

37 59/2

38 184

39 -(731/4)

40 587/3

41 23/4

42 -37

43 43680

44 -22

45 -(118/7)

46 -(192/17)

47 145/24

48 -12000

49 -(3/4)

50 -819

51 74

52 -21

53 89

54 205

55 -104

56 -(2/25)

57 161/19

58 -13520

59 -51

60 -45

61 137

62 -(133/3)

63 -321

64 -(13/456)

65 3/52

66 -(1297/72)

67 -(173/13)

68 -83

69 9

70 1092

71 5/2

72 -(372/5)

73 5

74 76/3

75 13

76 -1263

77 -(66/7)

78 -104

79 318

80 11/18

81 -(43/153)

82 53

83 231

84 115/11

85 -(77/6)

86 20/19

87 432/11

88 301

89 -(411/20)

90 83

91 5

92 74

93 3/2

94 14/3

95 20

96 369/52

97 -(21/8)

98 203

99 -(64/3)

100 -18

有理数加减法100题

七年级有理数加减法混合计算题50道

(sinα +cosα)²=sin²α+cos²α+2sinα *cosα=1+2sinα *cosα=(1-√3)²/4=1-(√3)/2 sinα *cosα=-(√3)/4 sinα[(1-√3)/2-sinα]=-(√3)/4 sin²α-(1/2-√3/2)sinα-√3/4=0 (sinα+√3/2)(sinα-1/2)=0 sinα=1/2 或sinα=-√3/2(不在0

七年级有理数加减混合计算题

有理数的加减混合运算(乘除扔了)

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

(2) 3+13-(-7)/6

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

(4) (-7)*(-1)/7+8

(5) (-11)*4-(-18)/18

(6) 4+(-11)-1/(-3)

(7) (-17)-6-16/(-18)

(8) 5/7+(-1)-(-8)

(9) (-1)*(-1)+15+1

(10) 3-(-5)*3/(-15)

(11) 6*(-14)-(-14)+(-13)

(12) (-15)*(-13)-(-17)-(-4)

(13) (-20)/13/(-7)+11

(14) 8+(-1)/7+(-4)

(15) (-13)-(-9)*16*(-12)

(16) (-1)+4*19+(-2)

(17) (-17)*(-9)-20+(-6)

(18) (-5)/12-(-16)*(-15)

(19) (-3)-13*(-5)*13

(20) 5+(-7)+17-10

(21) (-10)-(-16)-13*(-16)

(22) (-14)+4-19-12

(23) 5*13/14/(-10)

(24) 3*1*17/(-10)

(25) 6+(-12)+15-(-15)

(26) 15/9/13+(-7)

(27) 2/(-10)*1-(-8)

(28) 11/(-19)+(-14)-5

(29) 19-16+18/(-11)

(30) (-1)/19+(-5)+1

(31) (-5)+19/10*(-5)

(32) 11/(-17)*(-13)*12

(33) (-8)+(-10)/8*17

(34) 7-(-12)/(-1)+(-12)

(35) 12+12-19+20

(36) (-13)*(-11)*20+(-4)

(37) 17/(-2)-2*(-19)

(38) 1-12*(-16)+(-9)

(39) 13*(-14)-15/20

(40) (-15)*(-13)-6/(-9)

(41) 15*(-1)/12+7

(42) (-13)+(-16)+(-14)-(-6)

(43) 14*12*(-20)*(-13)

(44) 17-9-20+(-10)

(45) 12/(-14)+(-14)+(-2)

(46) (-15)-12/(-17)-(-3)

(47) 6-3/9/(-8)

(48) (-20)*(-15)*10*(-4)

(49) 7/(-2)*(-3)/(-14)

(50) 13/2*18*(-7)

(51) 13*5+6+3

(52) (-15)/5/3+(-20)

(53) 19*4+17-4

(54) (-11)-(-6)*(-4)*(-9)

(55) (-16)+16-(-8)*(-13)

(56) 16/(-1)/(-10)/(-20)

(57) (-1)-(-9)-9/(-19)

(58) 13*20*(-13)*4

(59) 11*(-6)-3+18

(60) (-20)+(-12)+(-1)+(-12)

(61) (-19)-3*(-13)*4

(62) (-13)/3-5*8

(63) (-15)/1+17*(-18)

(64) (-13)/3/19/8

(65) (-3)/(-13)/20*5

(66) 3/12/(-18)-18

(67) 5*(-19)/13+(-6)

(68) 4+4*(-19)-11

(69) (-2)+17-5+(-1)

(70) 9+(-3)*19*(-19)

(71) (-12)-(-6)+17/2

(72) 15*(-5)-(-3)/5

(73) (-10)*2/(-1)/4

(74) (-8)*16/(-6)+4

(75) 2-11+12+10

(76) (-3)+(-20)*(-7)*(-9)

(77) (-15)+8-17/7

(78) (-14)*10+18*2

(79) (-7)+2-(-17)*19

(80) (-7)/18/1+1

(81) 11/(-9)-(-16)/17

(82) 15+5*6-(-8)

(83) (-13)*(-18)+18/(-6)

(84) 11-(-1)/11*(-6)

(85) (-4)+(-12)+19/6

(86) (-18)/(-1)/(-19)+2

(87) 9*(-8)*(-6)/11

(88) 20*(-3)*(-5)+1

(89) (-18)-2+(-11)/20

(90) 15*1+4*17

(91) 1-10+(-14)/(-1)

(92) 10+(-4)*(-19)+(-12)

(93) 15/14/5*7

(94) 8+(-13)/3+1

(95) (-14)+6+(-2)*(-14)

(96) (-5)/(-13)/4+7

(97) (-15)/(-2)/(-12)+(-2)

(98) (-17)-(-20)-20*(-10)

(99) (-7)-10-13/3

(100) (-20)+(-18)+11+9

答案:

1 -18

2 103/6

3 -37

4 9

5 -43

6 -(20/3)

7 -(199/9)

8 54/7

9 17

10 2

11 -83

12 216

13 1021/91

14 27/7

15 -1741

16 73

17 127

18 -(2885/12)

19 842

20 5

21 214

22 -41

23 -(13/28)

24 -(51/10)

25 24

26 -(268/39)

27 39/5

28 -(372/19)

29 15/11

30 -(77/19)

31 -(29/2)

32 1716/17

33 -(117/4)

34 -17

35 25

36 2856

37 59/2

38 184

39 -(731/4)

40 587/3

41 23/4

42 -37

43 43680

44 -22

45 -(118/7)

46 -(192/17)

47 145/24

48 -12000

49 -(3/4)

50 -819

51 74

52 -21

53 89

54 205

55 -104

56 -(2/25)

57 161/19

58 -13520

59 -51

60 -45

61 137

62 -(133/3)

63 -321

64 -(13/456)

65 3/52

66 -(1297/72)

67 -(173/13)

68 -83

69 9

70 1092

71 5/2

72 -(372/5)

73 5

74 76/3

75 13

76 -1263

77 -(66/7)

78 -104

79 318

80 11/18

81 -(43/153)

82 53

83 231

84 115/11

85 -(77/6)

86 20/19

87 432/11

88 301

89 -(411/20)

90 83

91 5

92 74

93 3/2

94 14/3

95 20

96 369/52

97 -(21/8)

98 203

99 -(64/3)

100 -18

有理数的加减法训练题(有理数加减法计算题100道及答案)