standard_description: Apply properties of operations as strategies to add and subtract. (Students need not use formal terms for these properties.) Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.)
problem_activity: Stage 3: Add to 10
Required Preparation
Materials to Gather
Dot cubes
Materials to Copy
Blackline Masters
Number Race Stage 3 Gameboard

Narrative
Students take turns rolling two dot cubes. They find the sum and record it in the corresponding column on their gameboard. If the sum is more than 10, students roll the cubes again.
Additional Information
Each group of 2 needs two dot cubes.


aligns: no