Question

Efectuați:a)123+56-89 b)568-402-111 c) 1365-99+157 d) 14x30:35 e) 55:11x5:25 f) 2x3x4x5:5 g) 32x3:8:2 h) 3x12-3x12:18 repede dau coroana ​

Answer 1

Răspuns:

a) 123+56-89 = 179-89 = 90

b) 568-402-111 = 166 - 111 = 55

c) 1365-99+157 = 1266+157 = 1423

d) 14x30:35 = 420:35 = 12

e) 55:11x5:25 =5x5:25 = 25:25 = 1

f) 2x3x4x5:5 = 6x4x5:5 = 24x4x5:5 = 96x5:5 = 480:5 = 96

g) 32x3:8:2 = 96:8:2 = 12:2 =6

h) 3x12-3x12:18 = 36-36:18 = 36-2=34