Question

Pls repede dau coroana
C)[265-(50:25+2)×65]×2-(100:25+5)
D) [(450-20×15)×16+2800+8×9]:659-84:7:3
E) [(300:15-82:41):6+(3+3×3)×5]:9+3
F) 110:{75:15+50+7×[(1+90:30):2-21]}
Pls urgent dau coroana

Answer 1

C)( 265- 4x65) x 2 -9 = (265-260)x2-9 = 5x2-9 = 10-9 =1 D)[(450-300)X16+2800+8X9]÷659-84:7:3= (150X16+2800+72)÷659-4 = 5272÷659-4= 8-4= 4