Lesson: Relating Addition to Subtraction: Numbers up to 10 Elementary School Mathematics 1st Grade • Elementary School Mathematics KindergartenMathematics
In this lesson, we will learn how to write a family of addition and subtraction facts linking three numbers up to 10.
Sample Question Videos
There are 5 green counters and 4 blue counters.
There are 9 counters altogether.
Finish the family of facts.
Here are two number sentences that have a missing number: What is the missing number that completes both of the number sentences?
The total number of building blocks is . Write a subtraction equation to show how many building blocks are green.