Lesson: Relating Addition to Subtraction: Numbers up to 10

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

Q1:

Q2:

Here are two number sentences that have a missing number: What is the missing number that completes both of the number sentences?

Q3:

The total number of building blocks is . Write a subtraction equation to show how many building blocks are green.

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