👤

1. a) [(25+5) * 10 - 170] + 2 800; b) 105 - 2 x [11+5 * 3-(4+8));​

1 A 255 10 170 2 800 B 105 2 X 115 348 class=

Răspuns :

a) [30*10 - 170] + 2800=
= 130+2800=
=2930

b) 105-2x [11+15-12]=
= 105 - 2 x 15=
= 105-30=
=75