Which Sentence is True? - Up to 20
⚖️ Be the judge of the math court! Not every math sentence is telling the truth. You must test both sides of the equals sign to smoke out the imposters.
Do this: Read the concept below, then try the quiz or activity.
Concept
An equation is only "True" if both sides of the equals sign (=) have exactly the same value! It's like a perfectly balanced seesaw.
🎯 Testing the Seesaw: Look at this sentence: 14 - 6 = 9 1. Side A: Do the math on the left side: 14 - 6 = 8. 2. Side B: The right side just says 9. 3. Check the Balance: Does 8 = 9? No! The seesaw is broken! This sentence is an imposter. It is FALSE.
Look at this sentence: 7 + 8 = 15 1. Side A: Do the math: 7 + 8 = 15. 2. Side B: The right side says 15. 3. Check the Balance: Does 15 = 15? Yes! Perfect balance. This sentence is telling the truth. It is TRUE.
Try it
You be the judge!
Instructions: Do the math on the left side. Does it match the right side? Circle True or False.
Problem 1: 8 + 6 = 14 * Left side = ___ * Right side = 14 * True / False
Problem 2: 17 - 9 = 7 * Left side = ___ * Right side = 7 * True / False
Problem 3: 12 + 4 = 16 * True / False
Problem 4: 20 - 5 = 14 * True / False
Ultimate Challenge! Find the ONE true sentence out of the choices below: A) 15 - 6 = 8 B) 9 + 9 = 17 C) 13 - 5 = 8