Fill in the blanks in the following: nine times what is equal to nine plus nine.
In this question, we have to work out how many nines are equal to nine plus nine. Here, our model shows nine plus nine. How many lots of nine are there? Or how many groups of nine are there? Each picture shows one times nine or one group of nine. And there are two groups. So we can say that nine times two is equal to nine plus nine. The missing number is two. Nine times two is equal to nine plus nine.