Add within 1000: Level 1

The first instance of the  exercise is in the Early Math Math Mission. This exercise helps users to learn to add numbers in the hundreds.

Types of Problems
There is only one type of problem in this exercise:
 * 1) Adding numbers in the hundreds: This type of exercise asks users to identify the ones, tens and hundreds in a large number in order to add it to a smaller one.

Strategies
These problems are simple once you get the hang of them! Just identify the ones, tens or hundreds in the empty box and then add. Remember to carry over, if necessary!