Question

How can these models be used to find the sum 2.42 +
1.9

Answer 1

2.42 + 1.9 is 4.32

Models:

Use place value charts hundreds to make the models.

You can use 3 place value charts for 2.42 since it is 2 +0.42

and 2 for 1.9 since it is 1 + 0.90