Instructional Video5:01
Curated Video

Solving Addition Problems with Complements of 10 and Their Multiples

K - 5th
In this lesson, students will learn how to solve addition problems using complements of 10 and their multiples. Complements of 10 are pairs of numbers that add up to 10, and understanding these complements is essential for understanding...
Instructional Video2:56
Curated OER

Applications of Combinations

4th - 6th
Problem solving is the key to this quick video lesson. The tutor describes all the combinations he can have using five different consumable items. This is a good way to show how learners can make lists to solve numeric problems.