Addition and Subtraction Sentences to 10: Which is True?
🤔 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).
Do this: Read the concept below, then try the quiz or activity.
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 / Fib2. 7 - 1 = 5
* Fact / Fib3. 2 + 8 = 10
* Fact / Fib4. 9 - 3 = 7
* Fact / Fib5. 3 + 3 = 6
* Fact / Fib🏆 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 = ___