Răspuns:
a)3x(3+2)=3x5=15
4x(6+3)=4x9=36
5x(5+1)=5×6=30
6x(7+2)=6x9=54
2x(3+5)=2x8=16
3x(4+3)=3x7=21
8x(5+4)=8x9=72
b)6x(4+3)=(6x4)+(6x3)=24+18=32
7x(2+8)=(7x2)+(7x8)=14+56=70
8x(4+5)=(8x4)+(8x5)=32+40=72
9x(5+3=(9×5)+(9x4)=45+36=81
6x(2+6)=(6x2)+(6x6)=12+36=48
5x(2+5)=(5x2)+(5x5)=10+25=35
4x(2+8)=(4x2)+(4x8)=8+32=40
10x(4+3)=(10x4)+(10x3)=40+30=70
7x(4+5)=(7x4)+(7x5)=28+35=63
6x(3+7)=(6x3)+(6x7)=18+42=60
Sper că team ajutat.
Succes!
