What is 16 take away seven?
We can use a number line to help us. We need to start at number 16 and take away seven. 16 has six ones, so we could just take away those six ones. We need to take away seven. Seven is one more than six, so we need to take away one more. 16 take away seven is nine. First, we found 16 take away six, which is 10, and then we took away one more, to give us our answer, nine.