脫式計算可以簡便的要簡便

2021-03-17 02:01:26 字數 10132 閱讀 1860

1樓:匿名使用者

(1/8-3/14+1/7)*12

=(1/8-3/14+2/14)×12

=(1/8-1/14)×12

=3/2-6/7

=21/14-12/14

=9/14

2樓:

(1/8-3/14+1/7)*12

=(1/8-1/14)x12

=(14/112-8/112)x12

=6/112x12

=9/14

脫式計算。(能簡便的應該簡便) 12.75÷[14.6-(1.3+8.2)

3樓:叫我小妮子哈

原式=12.75÷(14.6-9.5)

=12.75÷5.1

=2.5

計算下面各題怎樣簡便就怎樣算?脫式計算1/8+3/7+7/8=,4/7-5/14+3/7=

4樓:新野旁觀者

計算下面各題怎樣簡便就怎樣算?脫式計算

1/8+3/7+7/8

=(1/8+7/8)+3/7

=1+3/7

=1又3/7

4/7-5/14+3/7

=(4/7+3/7)-5/14

=1-5/14

=9/14

5樓:鑫總

8/1+8/7+3/7=10/7

脫式計算,能簡便的要簡便計算. 14-11.3-1.7 54÷2.5÷0.4 3.2×0.2

6樓:泡沫

(1)14-11.3-1.7,

=14-(11.3+1.7),

=14-13,

=1;(2)54÷2.5÷0.4,

=54÷(2.5×0.4),

=54÷1,

=54;

(3)3.2×0.28+0.28×6.8,=(3.2+6.8)×0.28,

=10×0.28,

=2.8;

(4)80.3-33.3×0.5÷0.37,=80.3-16.65÷0.37,

=80.3-45,

=35.3.

7樓:買群刀仕

3.6÷0.4-1.2×5

=9-6=3

90÷【3.6-1.8】=90/1.8=50

【31.6-11.7】÷2.

5÷0.4=【31.6-11.

7】÷(2.5*0.4)=【31.

6-11.7】÷1=31.7-0.

1-11.7=19.9

3.4×7.8÷3.9=3.4*(7.8÷3.9)=3.4*2=6.8

5.23×4+4.77÷0.25=5.23×4+4.77×4=(5.23+4.77)×4=10×4=40

基本思路就是結合法,分子分母同時放大等倍數

法,再簡單?那就用筆挨個做除法吧!這些很容易理解的,你可以好好的看一下!

急需計算,脫式計算,簡便計算,要帶答案! 15

8樓:晚安

1.120-36×62616964757a686964616fe58685e5aeb9313333353331334÷18+35

2.(58+37)÷(64-9×5)

3.(6.8-6.8×0.55)÷8.5

4.0.12× 4.8÷0.12×4.8

5.(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6

6.6-1.6÷4= 5.38+7.85-5.37=

7.7.2÷0.8-1.2×5= 6-1.19×3-0.43=

8.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9

9.10.15-10.75×0.4-5.7

10.5.8×(3.87-0.13)+4.2×3.74

11.32.52-(6+9.728÷3.2)×2.5

12. 6 ×( 1/2 + 2/3 )

13. 8 × 4/5 + 8 × 11/5

14. 31 × 5/6 – 5/6

15. 9/7 - ( 2/7 – 10/21 )

16. 5/9 × 18 – 14 × 2/7

17. 4/5 × 25/16 + 2/3 × 3/4

18. 14 × 8/7 – 5/6 × 12/15

19. 17/32 – 3/4 × 9/24

20. 3 × 2/9 + 1/3

21. 5/7 × 3/25 + 3/7

22. 3/14 ×× 2/3 + 1/6

23. 1/5 × 2/3 + 5/6

24. 9/22 + 1/11 ÷ 1/2

25. 5/3 × 11/5 + 4/3

26. 45 × 2/3 + 1/3 × 15

27. 7/19 + 12/19 × 5/6

28. 1/4 + 3/4 ÷ 2/3

29. 8/7 × 21/16 + 1/2

30. 101 × 1/5 – 1/5 × 21

31.[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)

32.5+21*8/2-6-59

33.68/21-8-11*8+61

34.-2/9-7/9-56

35.4.6-(-3/4+1.6-4-3/4)

36.1/2+3+5/6-7/12

37.[2/3-4-1/4*(-0.4)]/1/3+2

38.22+(-4)+(-2)+4*3

39.-2*8-8*1/2+8/1/8

40.(2/3+1/2)/(-1/12)*(-12)

41.(-28)/(-6+4)+(-1)

42.2/(-2)+0/7-(-8)*(-2)

43.(1/4-5/6+1/3+2/3)/1/2

44.18-6/(-3)*(-2)

45.(5+3/8*8/30/(-2)-3

46.(-84)/2*(-3)/(-6)

47.1/2*(-4/15)/2/3

48.-3x+2y-5x-7y

49.2/3÷1/2-1/4×2/5

50. 2-6/13÷9/26-2/3

51.2/9+1/2÷4/5+3/8

52.10÷5/9+1/6×4

53.1/2×2/5+9/10÷9/20

54.5/9×3/10+2/7÷2/5

55.1/2+1/4×4/5-1/8

56.3/4×5/7×4/3-1/2

57.23-8/9×1/27÷1/27

58.8×5/6+2/5÷4

59.1/2+3/4×5/12×4/5

60.8/9×3/4-3/8÷3/4

61.5/8÷5/4+3/23÷9/11

62.3/7 × 49/9 - 4/3

63.8/9 × 15/36 + 1/27

64.12× 5/6 – 2/9 ×3

65.8× 5/4 + 1/4

66.6÷ 3/8 – 3/8 ÷6

67.4/7 × 5/9 + 3/7 × 5/9

68.5/2 -( 3/2 + 4/5 )

69.7/8 + ( 1/8 + 1/9 )

70.9 × 5/6 + 5/6

74.8 × 4/5 + 8 × 11/5

76.9/7 - ( 2/7 – 10/21 )

77.5/9 × 18 – 14 × 2/7

78.4/5 × 25/16 + 2/3 × 3/4

79.14 × 8/7 – 5/6 × 12/15

80.17/32 – 3/4 × 9/24

81.3 × 2/9 + 1/3

82.5/7 × 3/25 + 3/7

83.3/14 ×× 2/3 + 1/6

84.1/5 × 2/3 + 5/6

85.9/22 + 1/11 ÷ 1/2

86.5/3 × 11/5 + 4/3

87.45 × 2/3 + 1/3 × 15

88.7/19 + 12/19 × 5/6

89.1/4 + 3/4 ÷ 2/3

90.8/7 × 21/16 + 1/2

91.101 × 1/5 – 1/5 × 21

92.4.38 ÷ (36.94 + 34.3×0.2)

93.[(5.84 - 3.9 ) ÷0.4 + 0.15] ×0.92

94.[7.6 - 5 ×(0.3 + 0.9)]÷10

95.1.8×(1.4 - 0.26 ÷2)

96.0.27 ×99 + 0.27

97. 8 -0.8 ÷5 + 0.24 ×9

98. 0.25×1.25×40×8

99.(0.25 + 2.5 + 25)×0.4

100.8.4 + 7.66 + 2.34 +1.6

1. 3/7 × 49/9 - 4/3

2. 8/9 × 15/36 + 1/27

3. 12× 5/6 – 2/9 ×3

4. 8× 5/4 + 1/4

5. 6÷ 3/8 – 3/8 ÷6

6. 4/7 × 5/9 + 3/7 × 5/9

7. 5/2 -( 3/2 + 4/5 )

8. 7/8 + ( 1/8 + 1/9 )

9. 9 × 5/6 + 5/6

10. 3/4 × 8/9 - 1/3

11. 7 × 5/49 + 3/14

12. 6 ×( 1/2 + 2/3 )

13. 8 × 4/5 + 8 × 11/5

14. 31 × 5/6 – 5/6

15. 9/7 - ( 2/7 – 10/21 )

16. 5/9 × 18 – 14 × 2/7

17. 4/5 × 25/16 + 2/3 × 3/4

18. 14 × 8/7 – 5/6 × 12/15

19. 17/32 – 3/4 × 9/24

20. 3 × 2/9 + 1/3

21. 5/7 × 3/25 + 3/7

22. 3/14 ×× 2/3 + 1/6

23. 1/5 × 2/3 + 5/6

24. 9/22 + 1/11 ÷ 1/2

25. 5/3 × 11/5 + 4/3

26. 45 × 2/3 + 1/3 × 15

27. 7/19 + 12/19 × 5/6

28. 1/4 + 3/4 ÷ 2/3

29. 8/7 × 21/16 + 1/2

30. 101 × 1/5 – 1/5 × 21

31.[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)

32.5+21*8/2-6-59

33.68/21-8-11*8+61

34.-2/9-7/9-56

35.4.6-(-3/4+1.6-4-3/4)

36.1/2+3+5/6-7/12

37.[2/3-4-1/4*(-0.4)]/1/3+2

38.22+(-4)+(-2)+4*3

39.-2*8-8*1/2+8/1/8

40.(2/3+1/2)/(-1/12)*(-12)

41.(-28)/(-6+4)+(-1)

42.2/(-2)+0/7-(-8)*(-2)

43.(1/4-5/6+1/3+2/3)/1/2

44.18-6/(-3)*(-2)

45.(5+3/8*8/30/(-2)-3

46.(-84)/2*(-3)/(-6)

47.1/2*(-4/15)/2/3

48.-3x+2y-5x-7y

49.2/3÷1/2-1/4×2/5

50. 2-6/13÷9/26-2/3

51.2/9+1/2÷4/5+3/8

52.10÷5/9+1/6×4

53.1/2×2/5+9/10÷9/20

54.5/9×3/10+2/7÷2/5

55.1/2+1/4×4/5-1/8

56.3/4×5/7×4/3-1/2

57.23-8/9×1/27÷1/27

58.8×5/6+2/5÷4

59.1/2+3/4×5/12×4/5

60.8/9×3/4-3/8÷3/4

61.5/8÷5/4+3/23÷9/11

62.3/7 × 49/9 - 4/3

63.8/9 × 15/36 + 1/27

64.12× 5/6 – 2/9 ×3

65.8× 5/4 + 1/4

66.6÷ 3/8 – 3/8 ÷6

67.4/7 × 5/9 + 3/7 × 5/9

68.5/2 -( 3/2 + 4/5 )

69.7/8 + ( 1/8 + 1/9 )

70.9 × 5/6 + 5/6

74.8 × 4/5 + 8 × 11/5

76.9/7 - ( 2/7 – 10/21 )

77.5/9 × 18 – 14 × 2/7

78.4/5 × 25/16 + 2/3 × 3/4

79.14 × 8/7 – 5/6 × 12/15

80.17/32 – 3/4 × 9/24

81.3 × 2/9 + 1/3

82.5/7 × 3/25 + 3/7

83.3/14 ×× 2/3 + 1/6

84.1/5 × 2/3 + 5/6

85.9/22 + 1/11 ÷ 1/2

86.5/3 × 11/5 + 4/3

87.45 × 2/3 + 1/3 × 15

88.7/19 + 12/19 × 5/6

89.1/4 + 3/4 ÷ 2/3

90.8/7 × 21/16 + 1/2

91.101 × 1/5 – 1/5 × 21

92.4.38 ÷ (36.94 + 34.3×0.2)

93.[(5.84 - 3.9 ) ÷0.4 + 0.15] ×0.92

94.[7.6 - 5 ×(0.3 + 0.9)]÷10

95.1.8×(1.4 - 0.26 ÷2)

96.0.27 ×99 + 0.27

97. 8 -0.8 ÷5 + 0.24 ×9

98. 0.25×1.25×40×8

99.(0.25 + 2.5 + 25)×0.4

100.8.4 + 7.66 + 2.34 +1.6

1. 3/7 × 49/9 - 4/3

2. 8/9 × 15/36 + 1/27

3. 12× 5/6 – 2/9 ×3

4. 8× 5/4 + 1/4

5. 6÷ 3/8 – 3/8 ÷6

6. 4/7 × 5/9 + 3/7 × 5/9

7. 5/2 -( 3/2 + 4/5 )

8. 7/8 + ( 1/8 + 1/9 )

9. 9 × 5/6 + 5/6

10. 3/4 × 8/9 - 1/3

11. 7 × 5/49 + 3/14

12. 6 ×( 1/2 + 2/3 )

13. 8 × 4/5 + 8 × 11/5

14. 31 × 5/6 – 5/6

15. 9/7 - ( 2/7 – 10/21 )

16. 5/9 × 18 – 14 × 2/7

17. 4/5 × 25/16 + 2/3 × 3/4

18. 14 × 8/7 – 5/6 × 12/15

19. 17/32 – 3/4 × 9/24

20. 3 × 2/9 + 1/3

21. 5/7 × 3/25 + 3/7

22. 3/14 ×× 2/3 + 1/6

23. 1/5 × 2/3 + 5/6

24. 9/22 + 1/11 ÷ 1/2

25. 5/3 × 11/5 + 4/3

26. 45 × 2/3 + 1/3 × 15

27. 7/19 + 12/19 × 5/6

28. 1/4 + 3/4 ÷ 2/3

29. 8/7 × 21/16 + 1/2

30. 101 × 1/5 – 1/5 × 21

31.[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)

32.5+21*8/2-6-59

33.68/21-8-11*8+61

34.-2/9-7/9-56

35.4.6-(-3/4+1.6-4-3/4)

36.1/2+3+5/6-7/12

37.[2/3-4-1/4*(-0.4)]/1/3+2

38.22+(-4)+(-2)+4*3

39.-2*8-8*1/2+8/1/8

40.(2/3+1/2)/(-1/12)*(-12)

41.(-28)/(-6+4)+(-1)

42.2/(-2)+0/7-(-8)*(-2)

43.(1/4-5/6+1/3+2/3)/1/2

44.18-6/(-3)*(-2)

45.(5+3/8*8/30/(-2)-3

46.(-84)/2*(-3)/(-6)

47.1/2*(-4/15)/2/3

48.-3x+2y-5x-7y

49.2/3÷1/2-1/4×2/5

50. 2-6/13÷9/26-2/3

51.2/9+1/2÷4/5+3/8

52.10÷5/9+1/6×4

53.1/2×2/5+9/10÷9/20

54.5/9×3/10+2/7÷2/5

55.1/2+1/4×4/5-1/8

56.3/4×5/7×4/3-1/2

57.23-8/9×1/27÷1/27

58.8×5/6+2/5÷4

59.1/2+3/4×5/12×4/5

60.8/9×3/4-3/8÷3/4

61.5/8÷5/4+3/23÷9/11

62.3/7 × 49/9 - 4/3

63.8/9 × 15/36 + 1/27

64.12× 5/6 – 2/9 ×3

65.8× 5/4 + 1/4

66.6÷ 3/8 – 3/8 ÷6

67.4/7 × 5/9 + 3/7 × 5/9

68.5/2 -( 3/2 + 4/5 )

69.7/8 + ( 1/8 + 1/9 )

70.9 × 5/6 + 5/6

74.8 × 4/5 + 8 × 11/5

76.9/7 - ( 2/7 – 10/21 )

77.5/9 × 18 – 14 × 2/7

78.4/5 × 25/16 + 2/3 × 3/4

79.14 × 8/7 – 5/6 × 12/15

80.17/32 – 3/4 × 9/24

81.3 × 2/9 + 1/3

82.5/7 × 3/25 + 3/7

83.3/14 ×× 2/3 + 1/6

84.1/5 × 2/3 + 5/6

85.9/22 + 1/11 ÷ 1/2

86.5/3 × 11/5 + 4/3

87.45 × 2/3 + 1/3 × 15

88.7/19 + 12/19 × 5/6

89.1/4 + 3/4 ÷ 2/3

90.8/7 × 21/16 + 1/2

91.101 × 1/5 – 1/5 × 21

92.4.38 ÷ (36.94 + 34.3×0.2)

93.[(5.84 - 3.9 ) ÷0.4 + 0.15] ×0.92

94.[7.6 - 5 ×(0.3 + 0.9)]÷10

95.1.8×(1.4 - 0.26 ÷2)

96.0.27 ×99 + 0.27

97. 8 -0.8 ÷5 + 0.24 ×9

98. 0.25×1.25×40×8

99.(0.25 + 2.5 + 25)×0.4

100.8.4 + 7.66 + 2.34 +1.6

1.8又3分之5減去3又4分之1與1又10分之3的和,差是多少?

2.甲數是4又5分之1,比乙數的5倍少4/5,求乙數。

3.一個數與4又2分之1的和比5.75多2又4分之1,求這個數。

希望對你有幫助!!!

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