19 take away nine equals what?
19 is a two-digit number. We can make 19 from one ten and nine ones. 10 plus nine equals 19. We have to calculate 19 take away nine. Nine is a one-digit number. So we’re just taking away ones, nine ones. Let’s take away one, two, three, four, five, six, seven, eight, nine. We’ve taken away all nine of the ones. There are none left.
19 take away nine equals 10.