Question

Вычесли. 810:9-630:9= (64+336)×2=

Answer 1

810:9-630:9=90-70=20

(64+336)×2=400*2=800

Answer 2

$810 div 9 - 630 div 9 = 90 - 70 = 20 \ \ (64 + 336) times 2 = 400 times 2 = 800$