Video Transcript
There are 10 bowling balls in
each group. How many bowling balls are
there? 50, five, or 40.
To find out how many bowling
balls there are altogether, we need to count in tens. This is because the bowling
balls have been grouped into tens. Let’s count in tens — 10, 20,
30, 40, 50. Five tens are 50. There are 50 bowling balls
altogether.