Question

Lee has a jar of 100 pennies. She adds groups of 10 pennies to the jar . She adds 5 groups. What numbers does she say?

Answer 1

If the groups are all made up of 10 pennies and she added 5 groups, then

5 x 10 = 50

Which means she added 50 pennies to the jar and now has 150 pennies. :)