Question

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

Answer 1

50 ......................

Answer 2

If Lee has a Jar filled with 100 pennies and she adds 5 groups of 10 pennies she has at the end: 150 pennies.

He added 50 new pennies.

Analysis

Lee starts the jar with 100 pennies, if we want to know how many pennies in total he is going to add to the jar we have to multiply:

• 10 pennies per group
• 5 groups

10 × 5 = 50 pennies

Now we have to add this amount of pennies to the original amount that was in the jar

100 + 50 = 150 pennies.

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