数学题四则混合运算题40道和简易方程20道带答案!

2个回答

  • 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

    37. 812-700÷(9+31×11)

    38. 85+14×(14+208÷26)

    39.(284+16)×(512-8208÷18)

    40. 120-36×4÷18+35

    X-2/7X=3/4

    70%X + 20%X = 3.6

    25% + 10X =4/5

    X - 15%X = 68

    X+3/8 X=121

    5X-3×5/21 =5/11

    6X+5 =13.4

    X÷(6/35) =(26/45) ×(13/25)

    2(x-0.6)=4

    (0.5+x)+x=9.8÷2

    2(X+X+0.5)=9.8

    25000+x=6x

    3200=450+5X+X

    X-0.8X=6

    12x-8x=4.8

    7.5*2X=15

    1.2x=81.6

    x+5.6=9.4

    52-x =15

    91÷x =1.3