Lesson 17-5 ALGEBRA: Add Three Numbers in Any Order
Find each sum.
4.
5.
6.
7.
Number Sense
8.
Tony has 3
and 2
.
He wants to buy 3
.
Each
costs 10 ¢.
Does Tony have enough money to buy 3
? Explain.
_______
Your child learned to add numbers in any order.
Activity: Write the numbers 9, 8, and 1 on cards. Have your child add the numbers telling you the order he or she used to add. Then have your child add the same numbers in a different order.