Question

Calculati:
a) (84:2+5x7-9:3+3):[(36:18+6:11)-19:3]+3=?
b) [(2000-1236):4+2432:2]-469x3=?
c) [(3x3+3:3+3x3:3):13+(33:3+3-33:11+11)]:22=?
d) 2x(1020:85+205):[33x18-(50x10+23x4)]+1343:17-262=?

Answer 1

[(2000-1236):4+2432:2]-469X3=(764:4+2432:2)-469x3=(191+1216)-469x3=1407-1407=0

[(3x3+3:3+3x3:3):13+(33:3+3-33:11+11)]:22=[(9+1+3):13+(11+3-3+11)]:22=(13:13 +22):22=23:22=1 r 1

2x(1020:85+205):[33x18-(50x10+23x4)]+1343:17-262=2x(12+205):(33x18-592)+1343:17-262=2x217:2+1343:17-262=217+79-262=296-262=34