39 take away eight equals what?
The number 39 has two digits. The three digit is the tens digit. And the nine is the ones digit. So 39 has three tens and nine ones. We have to take away eight ones. One, two, three, four, five, six, seven, eight. 39 take away eight equals 31.
We had nine ones. We took away eight ones. That left us with one one. Three tens and a one equals 31.
39 take away eight equals 31.