Subtraction and Addition Facts
In this finding the difference learning exercise, 3rd graders subtract one-digit numbers and then combine addition and subtraction to solve problems. Students solve twenty-two problems.
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Study Jams! Relate Addition & Subtraction
Understanding the inverse relationship between addition and subtraction is essential for developing fluency in young mathematicians. Zoe and RJ explain how three numbers can form fact families that make two addition and two subtraction...
1st - 4th Math CCSS: Adaptable
Solving Simple Addition and Subtraction Equations Using Fact Families
Students explore addition fact families. In this addition and subtraction fact family math lesson plan, students click and drag objects on the Smart Board to create visual representations of fact families. Students use fact family...
2nd - 4th Math
Solve for Unknowns: Using the Commutative Property
Though it can be difficult for children to pronounce, the commutative property is a relatively simple concept to understand. The first video in this seven-part series explores how the order of numbers does not matter when adding them...
4 mins 2nd - 4th Math CCSS: Designed