Ejercicio 20

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CAPITULO II

Resta
Ejercicio 20
  • Se identifican los términos de la resta es decir el minuendo y el sustraendo
  • Restamos del minuendo el sustraendo cambiando su signo cambiado
  • Se reduce las cantiades semejantes
De:
  1. -8 restar 5
    -8-5=-13
  2. -7 restar 4
    -7-4=-11
  3. 8 restar 11
    8-11=-3
  4. -8 restar -11
    -8-(-11)=-8+11=3
  5. -1 restar -9
    -1-(-9)=-1+9=8
  6. 2a  restar  3b
    2a3b
  7. 3b  restar  2
    3b2
  8. 4x  restar  6b
    4x6b
  9. 5a  restar  6b
    5a6b
  10. 8x  restar  3
    8x(3 ) =8x+3
  11. 9 a 2  restar  5 b 2
    9 a 2 5 b 2
  12. 7xy  restar  5yz
    7xy(5yz ) =7xy+5yz
  13. 3a restar  4a
    3a4a=a
  14. 11 m 2  restar  25 m 2
    11 m 2 25 m 2 =14 m 2
  15. 6 x 2 y  restar  x 2 y
    6 x 2 y( x 2 y ) =6 x 2 y+ x 2 y=5 x 2 y
  16. 11 a 3 m 2  restar  7 a 3 m 2
    11 a 3 m 2 (7 a 3 m 2 ) =11 a 3 m 2 +7 a 3 m 2 =18 a 3 m 2
  17. 8a b 2  restar  8a b 2
    8a b 2 (8a b 2 ) = 8a b 2 + 8a b 2 =0
  18. 31 x 2 y  restar  46 x 2 y
    31 x 2 y(46 x 2 y ) =31 x 2 y+46 x 2 y=77 x 2 y
  19. 84 a 2 b  restar  84 a 2 b
    84 a 2 b(84 a 2 b ) = 84 a 2 b + 84 a 2 b =0
  20. 3 a x+1  restar  5 b x+2
    3 a x+1 5 b x+2
  21. 8 x a+2  restar 11
    8 x a+2 11
  22. 6 a n  restar  5 a n
    6 a n (5 a n ) =6 a n +5 a n =11 a n
  23. 45 a x1  restar  60 a x1
    45 a x1 (60 a x1 ) =45 a x1 +60 a x1 =15 a x1
  24. 54 b n1  restar  86 b n1
    54 b n1 (86 b n1 ) =54 b n1 +86 b n1 =140 b n1
  25. 35 m a  restar  60 m a
    35 m a (60 m a ) =35 m a +60 m a =25 m a
  26. 5 restar 1 2
    5( 1 2 ) =5+ 1 2 = 10+1 2 = 11 2
  27. 2 3  restar  3 4
    2 3 ( 3 4 ) = 2 3 + 3 4 = 8+9 12 = 1 12
  28. 1 3 x 2  restar  2 3 x 2
    1 3 x 2 ( 2 3 x 2 ) = 1 3 x 2 + 2 3 x 2 = x 2 +2 x 2 3 = 3 x 2 3 = x 2
  29. 4 5 x 3 y  restar  5 6 x 3 y
    4 5 x 3 y( 5 6 x 3 y ) = 4 5 x 3 y+ 5 6 x 3 y= 24 x 3 y+25 x 3 y 30 = 49 30 x 3 y
  30. 1 8 a b 2  restar  3 4 a b 2
    1 8 a b 2 ( 3 4 a b 2 ) = 1 8 a b 2 + 3 4 a b 2 = a b 2 +6a b 2 8 = 5 8 a b 2

    Restar
  31. 3de2
    23=5
  32. 1de7
    7(1 ) =7+1=8
  33. 5de8
    8(5 ) =8+5=3
  34. 4de5
    5(4 ) =5+4=9
  35. 7de7
    7(7 ) = 7 + 7 =0
  36. 5de2a
    2a(5 ) =2a+5
  37. bde3x
    3xb
  38. 5mde2n
    2n5m
  39. 6ade3b
    3b(6a ) =3b+6a
  40. 5 a 3 de8b
    8b(5 a 3 ) =8b+5 a 3
  41. 9de7a
    7a(9 ) =7a+9
  42. 25de25ab
    25ab(25 ) =25ab+25
  43. ade3a
    3a(a ) =3a+a
  44. 3bde4b
    4b(3b ) =4b+3b
  45. 11 x 3 de54 x 3
    54 x 3 (11 x 3 ) =54 x 3 +11 x 3 =65 x 3
  46. 14 a 2 bde78 a 2 b
    78 a 2 b14 a 2 b=64 a 2 b
  47. 43 a 2 yde54 a 2 y
    54 a 2 y(43 a 2 y ) =54 a 2 y+43 a 2 y=11 a 2 y
  48. 9abdeab
    ab9ab=10ab
  49. 31 x 2 yde31 x 2 y
    31 x 2 y(31 x 2 y ) = 31 x 2 y + 31 x 2 y =0
  50. a x de3 a x
    3 a x a x =4 a x
  51. 7 a x+1 de311 a x+1
    311 a x+1 (7 a x+1 ) =311 a x+1 +7 a x+1 =318 a x+1
  52. 9 m x de105 m x
    105 m x 9 m x =94 m x
  53. 18 a x1 de31 a x1
    31 a x1 18 a x1 =49 a x1
  54. 19 m a de236 m a
    236 m a (19 m a ) =236 m a +19 m a =217 m a
  55. 54 a x+2 de85 a x+2
    85 a x+2 54 a x+2 =139 a x+2
  56. 6ade 1 4
    1 4 (6a ) = 1 4 +6a
  57. 5de 2 3
    2 3 (5 ) = 2 3 +5= 2+15 3 = 13 3
  58. 3 8 m 3 de 7 10 m 3
    7 10 m 3 3 8 m 3 = 28 m 3 15 m 3 40 = 43 40 m 3
  59. 11 12 a 2 b 2 de 5 6 a 2 b 2
    5 6 a 2 b 2 ( 11 12 a 2 b 2 ) = 5 6 a 2 b 2 + 11 12 a 2 b 2 = 10 a 2 b 2 +11 a 2 b 2 12 = a 2 b 2 = 7 4 a 2 b 2
  60. 45 a 3 b 2 de 1 9 a 3 b 2
    1 9 a 3 b 2 45 a 3 b 2 = a 3 b 2 405 a 3 b 2 9 = 406 9 a 3 b 2 =45 1 9 a 3 b 2