Răspuns:
a) Adevărat
b)Fals
c) fals
d) Adevărat
a.
3× (2+5) = 3×2+3×5
3×7 = 6+15
21 = 21
ADEVARAT
b.
(8-3) ×5 = 8×5-8×3
5×5=40-24
25=26
FALS
c.
(7+3)×6 = 7+6×3+6
10×6=7+18+6
60=25+6
60=31
d.
6×(1+3+4) = 8×6
6×(4+4)= 48
6×8=48
48=48
