Video Transcript
There are 100 balls in each
bag. How many balls are there?
We can see that there are three
bags of balls. And we know that each bag contains
100 balls. So to count the number of balls in
the bags, we need to count in 100s. 100, 200, 300. But that isn’t the total number of
balls. We have to count these ones
too. They haven’t been grouped, so we
can count these as ones. There are four ones. 301, 302, 303, 304. First, we counted in 100s. Then, we counted in ones. We had three 100s and four
ones.
Did you notice that there were no
10s, only 100s and ones? The total number of balls is
304.