Three times 10 equals what?
This symbol shows that we need to find three times 10 or three lots of 10. We can represent three lots of 10 by using tens rods. Each rod represents 10. So if we have three tens, how many have we got altogether?
We can use a hundred square to help us count in tens. Each row of the hundred square contains 10 more squares. So if we want to count three tens, we can find the tens numbers or the multiples of 10 in the hundred square to help us. One ten equals 10, two tens are 20, and three times 10 equals 30.
We found the answer by counting in tens three times. We could also do this using a number line: zero, 10, 20, 30. We counted in tens three times. And so we know three times 10 equals 30.