Adding Two-Digit Numbers

2.NBT.1  2.NBT.1a
Module 8 Lesson 1
Differentiation Activty

Partners will each build a number with base-ten blocks that is less than 50.  They will work together to find the total value.  They can also use one of the part amounts to practice decomposing the number into tens and ones.
Students may use a sharing mat to show their work.

Sharing Mat