15.8-17 18 17 7+14.2-11 18。简算

2020-11-25 13:22:51 字数 6972 阅读 6400

1楼:匿名用户

15.8-17/18÷17/7+14.2-11/18=15.8-7/18+14.2-11/18=(15.8+14.2)-(7/18+11/18)=30-1=29

15.8-7/18+14.2-11/18脱式计算

2楼:宝宝

15.8-7/18+14.2-11/18脱式计算解:采用结合律,

原式=(15.8+14.2)-(7/18+11/18)=30-1=29

3楼:科学普及交流

15.8-7/18+14.2-11/18

=15.8+14.2-7/18-11/18=30-1=29

15.8-7/18+14.2-11/18

4楼:瀛洲烟雨

15.8-7/18+14.2-11/18

=(15.8+14.2)-(7/18+11/18)=20-1=29

计算题15/7+21/14+5/8+21/17=简算也可以

5楼:c冷剑魔

(15*8*17+4*17+7*17+21*7*8)/7*8*17

=(2040+68+119+1176)/952

=3403/952 不可以化简了

6楼:匿名用户

125*3 125*5 25*3 25

2.9999*3 101*11*(101-92)

3.(23/4-3/4)*(3*6 2)

4. 3/7 ×

49/9 - 4/3

5. 8/9 × 15/36 1/27

6. 12× 5/6 – 2/9 ×3

7. 8× 5/4 1/4

8. 6÷ 3/8 – 3/8 ÷6

9. 4/7 × 5/9 3/7 × 5/9

10. 5/2 -( 3/2 4/5 )

11. 7/8 ( 1/8 1/9 )

12. 9 × 5/6 5/6

13. 3/4 × 8/9 - 1/3

14. 7 × 5/49 3/14

15. 6 ×( 1/2 2/3 )

16. 8 × 4/5 8 × 11/5

17. 31 × 5/6 – 5/6

18. 9/7 - ( 2/7 – 10/21 )

19. 5/9 × 18 – 14 × 2/7

20. 4/5 × 25/16 2/3 × 3/4

21. 14 × 8/7 – 5/6 × 12/15

22. 17/32 – 3/4 × 9/24

23. 3 × 2/9 1/3

24. 5/7 × 3/25 3/7

25. 3/14 ×× 2/3 1/6

26. 1/5 × 2/3 5/6

27. 9/22 1/11 ÷ 1/2

28. 5/3 × 11/5 4/3

29. 45 × 2/3 1/3 × 15

30. 7/19 12/19 × 5/6

31. 1/4 3/4 ÷ 2/3

32. 8/7 × 21/16 1/2

33. 101 × 1/5 – 1/5 × 21

34.50+160÷40

35.120-144÷18 35

36.347 45×2-4160÷52

37(58 37)÷(64-9×5)

38.95÷(64-45)

39.178-145÷5×6 42

40.812-700÷(9 31×11)

41.85 14×(14 208÷26)

43.120-36×4÷18 35

44.(58 37)÷(64-9×5)

45.(6.8-6.8×0.55)÷8.5

46.0.12× 4.8÷0.12×4.8

47.(3.2×1.5 2.5)÷1.6

48.6-1.6÷4= 5.38 7.85-5.37=

49.7.2÷0.8-1.2×5= 6-1.19×3-0.43=

50.6.5×(4.8-1.2×4)=

51.5.8×(3.87-0.13) 4.2×3.74

52.32.52-(6 9.728÷3.2)×2.5

53.[(7.1-5.6)×0.9-1.15] ÷2.5

54.5.4÷[2.6×(3.7-2.9) 0.62]

55.12×6÷(12-7.2)-6

56.12×6÷7.2-6

57.0.68×1.9 0.32×1.9

58.58 370)÷(64-45)

59.420 580-64×21÷28

60.136 6×(65-345÷23)

15-10.75×0.4-5.7

62.18.1+(3-0.299÷0.23)×1

63.(6.8-6.8×0.55)÷8.5

64.0.12× 4.8÷0.12×4.8

65.(3.2×1.5 2.5)÷1.6

66.3.2×6 (1.5 2.5)÷1.6

67.0.68×1.9 0.32×1.9

68.10.15-10.75×0.4-5.7

69.5.8×(3.87-0.13) 4.2×3.74

70.32.52-(6 9.728÷3.2)×2.5

71.[(7.1-5.6)×0.9-1.15] ÷2.5

72.5.4÷[2.6×(3.7-2.9) 0.62]

73.12×6÷(12-7.2)-6

74.12×6÷7.2-6

75.33.02-(148.4-90.85)÷2.5

1) 76.(25%-695%-12%)*36

77./4*3/5 3/4*2/5

78.1-1/4 8/9/7/9

79. 1/6/3/24 2/21

80./15*3/5

81.3/4/9/10-1/6

82./3 1/2)/5/6-1/3]/1/7

83./5 3/5/2 3/4

84.(2-2/3/1/2)]*2/5

85. 5268.32-2569

86.3 456-52*8

87.5% 6325

88./2 1/3 1/4

2) 89 456-78

3) 5% . 3/7 × 49/9 - 4/3

4) 9 × 15/36 1/27

5) 2× 5/6 – 2/9 ×3

6) 3× 5/4 1/4

7) 94÷ 3/8 – 3/8 ÷6

8) 95/7 × 5/9 3/7 × 5/9

9) 6/2 -( 3/2 4/5 )

10) 8 ( 1/8 1/9 )

11) 8 × 5/6 5/6

12) 1/4 × 8/9 - 1/3

13) 10 × 5/49 3/14

14) 1.5 ×( 1/2 2/3 )

15) 2/9 × 4/5 8 × 11/5

16) 3.1 × 5/6 – 5/6

17) 4/7 - ( 2/7 – 10/21 )

18) 19 × 18 – 14 × 2/7

19) 5 × 25/16 2/3 × 3/4

20) 4 × 8/7 – 5/6 × 12/15

21) 7/32 – 3/4 × 9/24

22) 1、 2/3÷1/2-1/4×2/5

2、 2-6/13÷9/26-2/3

3、 2/9+1/2÷4/5+3/8

4、 10÷5/9+1/6×4

5、 1/2×2/5+9/10÷9/20

6、 5/9×3/10+2/7÷2/5

7、 1/2+1/4×4/5-1/8

8、 3/4×5/7×4/3-1/2

9、 23-8/9×1/27÷1/27

10、 8×5/6+2/5÷4

11、 1/2+3/4×5/12×4/5

12、 8/9×3/4-3/8÷3/4

13、 5/8÷5/4+3/23÷9/11

23) 1.2×2.5 0.8×2.5

24) 8.9×1.25-0.9×1.25

25) 12.5×7.4×0.8

26) 9.9×6.4-(2.5 0.24)(27) 6.5×9.5 6.5×0.5

0.35×1.6 0.35×3.4

0.25×8.6×4

6.72-3.28-1.72

0.45 6.37 4.55

5.4 6.9×3-(25-2.5)2×41846-620-380

4.8×46 4.8×54

0.8 0.8×2.5

1.25×3.6×8×2.5-12.5×2.4

28×12.5-12.5×20

23.65-(3.07 3.65)

(4 0.4×0.25)8×7×1.25

1.65×99 1.65

27.85-(7.85 3.4)

48×1.25 50×1.25×0.2×8

7.8×9.9 0.78

(1010 309 4 681 6)×12

3×9146×782×6×854

5.15×7/8 6.1-0.60625

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

31.50+160÷40 (58 370)÷(64-45)

32.120-144÷18 35

33.347 45×2-4160÷52

34(58 37)÷(64-9×5)

35.95÷(64-45)

36.178-145÷5×6 42 420 580-64×21÷28

37.812-700÷(9 31×11) (136 64)×(65-345÷23)

38.85 14×(14 208÷26)

39.(284 16)×(512-8208÷18)

40.120-36×4÷18 35

41.(58 37)÷(64-9×5)

42.(6.8-6.8×0.55)÷8.5

43.0.12× 4.8÷0.12×4.8

44.(3.2×1.5 2.5)÷1.6 (2)3.2×(1.5 2.5)÷1.6

45.6-1.6÷4= 5.38 7.85-5.37=

46.7.2÷0.8-1.2×5= 6-1.19×3-0.43=

47.6.5×(4.8-1.2×4)= 0.68×1.9 0.32×1.9

48.10.15-10.75×0.4-5.7

49.5.8×(3.87-0.13) 4.2×3.74

50.32.52-(6 9.728÷3.2)×2.5

51.[(7.1-5.6)×0.9-1.15] ÷2.5

52.5.4÷[2.6×(3.7-2.9) 0.62]

53.12×6÷(12-7.2)-6 (4)12×6÷7.2-6

102×4.5

7.8×6.9+2.2×6.9

5.6×0.25

8×(20-1.25)

1)127 352 73 44 (2)89 276 135 33

(1)25 71 75 29 88 (2)243 89 111 57

9405-2940÷28×21

920-1680÷40÷7

690 47×52-398

148 3328÷64-75

360×24÷32 730

2100-94 48×54

51 (2304-2042)×23

4215 (4361-716)÷81

(247 18)×27÷25

36-720÷(360÷18)

1080÷(63-54)×80

(528 912)×5-6178

8528÷41×38-904

264 318-8280÷69

(174 209)×26- 9000

814-(278 322)÷15

1406 735×9÷45

3168-7828÷38 504

796-5040÷(630÷7)

285 (3000-372)÷36

1 5/6-19/12

3x(-9) 7x(-9

25 7 18 17 18 11 25的简便运算

1楼 匿名用户 17 25 7 18 17 18 11 25的简便运算 17 25x7 18 17 25x11 18 17 25x 7 18 11 18 17 25x1 17 25 17 25 7 18 17 18 11 25的简便运算 2楼 匿名用户 17 25 7 18 17 18 11 25 ...