K-5 friendly lesson
Try one idea, then jump into the activity.These lessons are designed to feel short, friendly, and easy to follow.

Addition and Subtraction Sentences to 10: Which is True?

šŸ¤” Fact or Fib? It's time to be a judge! You will look at a number sentence and decide if it is telling the truth (a fact) or a lie (a fib).

Lesson 4

Concept

The equals sign(=) is the most important part of a number sentence.It means "is the same as".Both sides of the equals sign must balance perfectly. ** How to be a Judge:** 1. ** Look at the Sentence:** For example, ** 6 + 3 = 9 **. 2. ** Solve One Side:** Solve the part before the equals sign. 6 + 3 is 9. 3. ** Compare:** Is that the same as the number on the other side ? Yes, 9 is the same as 9. 4. ** Make Your Judgment:** The sentence is a ** Fact(True) **! ** Another Example:** * ** Sentence:** 8 - 2 = 5 * ** Solve:** 8 - 2 is 6. * ** Compare:** Is 6 the same as 5 ? No! * ** Judgment :** The sentence is a ** Fib(False) ** !

Try it

You be the judge! ** Instructions:** Look at each sentence.Decide if it is a Fact(True) or a Fib(False).Circle your answer. 1. ** 4 + 5 = 9 ** * Fact / Fib 2. ** 7 - 1 = 5 ** * Fact / Fib 3. ** 2 + 8 = 10 ** * Fact / Fib 4. ** 9 - 3 = 7 ** * Fact / Fib 5. ** 3 + 3 = 6 ** * Fact / Fib šŸ† ** Correction Challenge:** The following sentence is a FIB.Can you fix it to make it a FACT ? 6. ** 5 - 2 = 4 ** * Correct sentence: 5 - 2 = ___