Problem Solving

 We used our place value to solve the question.

First, we started the ones first. For Example: 4 + 6 +7= 17.

Next, we add the tens. For Example: 20 + 20 + 10= 50

Then, we combined the answer. 50 + 17 = 67

Last, we answered the story problem. For Example: Leihani has practice 67 munites.

This is hard because I don't quite understand about it.