Question

99×{364:7:2+[(195×3:5-100)+63:3:7]}:2=

Answer 1

99x{52:2+[(585:5-100)+21:7]}:2=
=99x{26+[(117-100)+3]}:2=
=99x[26+(17+3)]:2=
=99x(26+20):2=
=99x46:2=
=99x23=
=2277

Answer 2

99·[52/2+[[585/5-100]+21/7]]/2
⇒99·[26+[[117-100]+3]/2
⇒99·[26+17+3]/2
⇒99·[43+3]/2
⇒99·46/2
⇒4554/2
⇒2277;