standard_description: Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.
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