Module 2.8 Adding Two Digit Numbers Base Ten Blocks

I need two volunteers to take a handful of tens and ones blocks from the container to make a two-digit number. What happens if we put the two groups of blocks together? What number would the blocks show? What addition sentence could you write? Combine the blocks to determine the total value. Adding Two Digit Numbers Base Ten Blocks

On your sticky note, write a two-digit number that has no more than 4 tens and no more than 5 ones. Examples: 42, 31, 24 Non Examples: 52, 27, 19 Attach your sticky note to the classroom door. Select two sticky notes, use the Flare Place Value tool or Base Ten Blocks to find the total of the two numbers. Adding Two Digit Numbers Base Ten Blocks

Reflection What strategies did you use on part 2?