Question

calculeaza respectand regulile invatate : 10 +10 :10-10 ; 3x7+42:2-42+5 ; 12:3-1+25:5+40:10 ; 2+15x4:(120-5x22)+13x11 ; (60-53)x43x(16+34:2-5x6):3-301

Answer 1

10+1-10=1;21+21-42+5=0+5=5;4-1+5+4=12;2+60:(120-110)+143=2+60:10+143=2+6+143=151;7ori 43ori(16+17-30):3-301=229ori3:3-301=876:3-301=293-301=am gresit ceva