Calcule elementare

Exemple:


  1. 5 − 8 = −3

  1. − 4 − 3 = −7

  1. − 7 + 2 = −5

  1. − 7 + 9 = 2

  1. − 5 − (−2) = −5 + 2 = −3

  1. − (a − b + c) = − a + b − c

  1. 3 * (−5) = − 15

  1. − 4 * (+2) = −8

  1. (−2) * (−3) = 6;

  1. 8 : (−4) = −2

  1. (−8) : (−1) = 8

  1. (−3)2 = 9

  1. (−3)3 = − 27

  1. (−1)7 = −1

  1. (−1)4 = 1

  1. 15 = 1

  1. 81 = 8

  1. (−7)1 = −7

  1. 30 = 1

  1. (−6)0  = 1

  1. 07 = 0

  1. 217 * 23  = 220

  1. 513  : 5= 510

  1. (73)4 = 712

  1. (2n)= 8n3


  1. −3n * 2n= − 6n4




































38. 5x + 2x = 7x

39. 2y − 9y = − 7y

40. − b + 2b = b

41.
−3n2 − 5n2 = − 8n2

42. a + a = 2a

43. c * c = c2

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