Question

2. Calculează, respectând ordinea efectuării operaţiilor.
a) (48-35) x 3 +63:9-8:2
b)
5x5x3+5-5x3+5+3x5+5
c) (64:4.4+81:3:3+72:2:2+4:1:1):5

Answer 1

Răspuns:

a) =13×3+7-4=39+7-4=42

b) =25×3+5-15+5+15+5=75+5-15+5+15+5=80-15+5+15+5=65+5+15+5=90

c) =(16:4+27:3+36:2+4):5=(4+9+18+4):5=35:5=7