Make 10

The  exercise appears under the Early math Math Mission. This exercise has the Khan Academy user add two single digit numbers to make 10 (hence ).

Types of problems
There is one type of problem in this exercise:
 * 1) Make 10: This problem asks the student to find the number which when added to the other number gives 10. Making10.png

Strategies
It's easy to get both speed and accuracy badges in this exercise.

Real-life Applications
This can help with reaching desired deals, and finding missing values in, say, tipping.