Răspuns:
a) 2 x 27 : (3 + 7 - 1) = 6
2 x 27 : 9 =
54 : 9 =
6
b) 625 : 25 + 8 x 2 + 150 = 66 = > posibil o greseala de tipar
[(625 : 25) + 8] x 2 =
(25 + 8) x 2 =
33 x 2 =
66
c) 75 : ( 7 - 2 ) + 9 x (15 - 6) = 96
75 : 5 + 9 x 9 =
15 + 81 =
96
d) 100 x 6 : 10 x (3 - 3) = 0
100 x 6 : 10 x 0 =
0
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