Jake had 9 kites. He gave 4 to his friend. How many kites are left? — 5.9 − 4 = 5 kites left.
Sara has 7 apples. She picks 5 more. How many apples in all? — 12.7 + 5 = 12 apples.
There are 6 birds in a tree. 3 fly away. How many are left? — 3.6 − 3 = 3 birds remain.
Tom has 8 crayons. He gets 4 more. How many does he have now? — 12.8 + 4 = 12 crayons.
Which word tells you to ADD? — altogether."Altogether" means put together — that means add!
Which word tells you to SUBTRACT? — how many left."How many left" means remove — that means subtract!
A basket had 12 oranges. 5 were eaten. How many are left? — 7.12 − 5 = 7 oranges remain.
Ben had 3 toy cars. His dad gave him 7 more. How many cars now? — 10.3 + 7 = 10 cars.
If 3 + 5 = 8, what does 5 + 3 equal? — 8.Commutative property: 5 + 3 = 3 + 5 = 8.
What property lets you flip the numbers in addition? — Commutative.The Commutative Property says order does not change the sum.
9 + 2 = ? — 11.9 + 2 = 11.
Which expression equals 7 + 9? — 9 + 7.By the commutative property, 7 + 9 = 9 + 7.
What is (1 + 4) + 6? — 11.(1 + 4) + 6 = 5 + 6 = 11.
What is 1 + (4 + 6)? — 11.1 + (4 + 6) = 1 + 10 = 11. Same as (1+4)+6 — associative property!
True or False: 6 + 8 = 8 + 6 — True.True — commutative property means order does not matter.
What is 8 + 0? — 8.Adding 0 does not change the number. 8 + 0 = 8.
If you know 9 + 6 = 15, what other fact do you know for free? — 6 + 9 = 15.Commutative: 9 + 6 = 6 + 9 = 15.
Which addition is the same as 12 + 6? — 6 + 12.12 + 6 = 6 + 12 by the commutative property.
True or False: (6 + 2) + 4 = 6 + (2 + 4) — True.True. Both equal 12. Regrouping does not change the sum.
Pick the addition that is easiest using the commutative property: 1 + 9 or 9 + 1? — 9 + 1 is easier.Start with 9, add 1. Much easier than starting at 1 and counting up 9.
Which property says you can add numbers in any order? — Commutative.The Commutative Property: a + b = b + a, no matter the order.
What does the equal sign (=) mean? — Both sides have the same value.The equal sign means BALANCE — both sides have the same value.
Is 5 + 3 = 8 true? — Yes.5 + 3 = 8 and the right side is 8. Both sides balance!
Is 4 + 4 = 9 true? — No.4 + 4 = 8, not 9. The equation is false.
Which equation is TRUE? — 8 = 5 + 3.8 = 5 + 3 because 5 + 3 = 8. Both sides equal 8!
Is 10 = 6 + 4 correct? — Yes.6 + 4 = 10, so 10 = 10. Both sides balance!
Which shows the equal sign used correctly? — 9 = 4 + 5.4 + 5 = 9, so 9 = 9. Both sides have the same value!
Is the equation 0 + 8 = 8 + 0 true? — Yes.Both sides equal 8. The commutative and equal-sign properties together!
Which picture matches 4 + 2 = 6? — 4 balls and 2 balls total 6.4 + 2 = 6 means 4 and 2 together make 6.
What does a balanced scale represent? — An equation where both sides are equal.A balanced scale shows equal weight on both sides — just like a true equation!
Sam says 9 + 1 = 11. Is he correct? — No, 9+1=10.9 + 1 = 10, not 11. The equation is false.
True or False: 15 = 8 + 7 — True.8 + 7 = 15. Both sides equal 15 — TRUE!
Which of these makes sense? ___ = 6 + 4 — 10 = 6 + 4.6 + 4 = 10, so 10 = 6 + 4. The blank is 10.
Anna writes 6 + 3 = 8. Is her equal sign correct? — No, 6+3=9.6 + 3 = 9, not 8. The equation is unbalanced — false!
Is 3 + 8 = 8 + 3 a true equation? — Yes, because addition is commutative.3 + 8 = 11 and 8 + 3 = 11. Both sides equal 11 — TRUE!
What is the missing number? 6 + __ = 15 — 9.15 − 6 = 9. Check: 6 + 9 = 15 ✓
__ + 5 = 12 — 7.12 − 5 = 7. Check: 7 + 5 = 12 ✓
9 + __ = 17 — 8.17 − 9 = 8. Check: 9 + 8 = 17 ✓
__ + 8 = 13 — 5.13 − 8 = 5. Check: 5 + 8 = 13 ✓
What number is missing? 7 + __ = 11 — 4.11 − 7 = 4. Check: 7 + 4 = 11 ✓
__ + 3 = 10 — 7.10 − 3 = 7. Check: 7 + 3 = 10 ✓
4 + __ = 4 — 0.4 + 0 = 4. Adding zero keeps the number the same!
__ + 9 = 18 — 9.18 − 9 = 9. Check: 9 + 9 = 18 ✓
__ + 6 = 6 — 0.6 + 0 = 6. The missing number is 0!
__ + 0 = 17 — 17.17 + 0 = 17. Adding zero never changes the number!
The fact family 4, 7, 11 — which is a correct fact? — 7 + 4 = 11.4 + 7 = 11. The two smaller numbers add up to the largest.
How many facts are in a fact family? — 4.Every fact family has exactly 4 facts: 2 additions and 2 subtractions.
Which subtraction fact belongs to the family 3, 5, 8? — 8 − 5 = 3.8 − 5 = 3. The largest number (8) starts the subtraction fact.
What is the largest number in the fact family 6, 8, 14? — 14.In a fact family, the sum of the two smaller numbers is always the largest: 6 + 8 = 14.
Which addition fact uses numbers 9, 4, and 13? — 9 + 4 = 13.9 + 4 = 13. The two smaller numbers (9, 4) add up to the largest (13).
If 7 + 8 = 15, what subtraction fact do you know? — 15 − 7 = 8.15 − 7 = 8 (and also 15 − 8 = 7). Addition and subtraction are opposites!
The family has numbers 6, 7, and ___. The largest is 13. What is the blank? — 13.6 + 7 = 13. The blank is 13 — the largest in the family.
Which THREE numbers form a fact family? — 3, 5, 8.3 + 5 = 8. These three numbers form a fact family!
What number completes this fact family? 6, __, 11. (6 + ? = 11) — 5.11 − 6 = 5. The missing number is 5.
True or False: Every fact family has exactly 4 facts. — True.Every fact family has exactly 4: two additions and two subtractions.
Sam knows 11 − 4 = 7. He says 4 + 7 = 11. Is Sam correct? — Yes — they are in the same fact family.Yes! 4, 7, 11 form a fact family: 11−4=7 and 4+7=11 are both in it.