Odpowiedź:
1. a) 34 - 4,5 = 29,5
c) 24: (3.4) = 24: (3•4) = 24:12 = 2
2. (20+14:2) = 20 + 7 = 27
b) 20:22 = 20/22 = 10/11
d) 22 - (5+6) = 22 - 11 = 11
f) (25- (3+8)) - 3 = 25 - 11 - 3 = 11
Szczegółowe wyjaśnienie:
1. a) 34 - 4,5 = 29,5
c) 24: (3.4) = 24: (3•4) = 24:12 = 2
2 (20+14:2) = 20 + 7 = 27
b) 20:22 = 20/22 = 10/11
d) 22 - (5+6) = 22 - 11 = 11
f) (25- (3+8)) - 3 = 25 - 11 - 3 = 11