A one-step problem requires how many math operations to solve? — One.A one-step problem only needs a single addition or subtraction to find the answer.
Tom has 15 marbles. He finds 9 more. How many does he have now? — 24.15 + 9 = 24 marbles. This is a one-step addition problem.
There are 30 cookies. 12 are eaten. How many are left? — 18.30 − 12 = 18 cookies remain.
A two-step word problem needs: — Two math operations in order.A two-step problem requires solving one operation first, then using that answer in a second operation.
Lisa has 20 stickers. She buys 10 more, then gives away 8. How many does she have? — 22.Step 1: 20 + 10 = 30. Step 2: 30 − 8 = 22 stickers.
Which is a one-step problem? — Sue has 14 cards and gives 6 away. How many left?.Sue's problem only needs one subtraction: 14 − 6 = 8. The others need two or more steps.
A bag has 45 grapes. 13 are red and the rest are green. How many are green? — 32.45 − 13 = 32 green grapes. One-step subtraction.
In a two-step problem, if Step 1 gives you 40 and Step 2 says "subtract 17," what is the final answer? — 23.40 − 17 = 23. Using the result of Step 1 in Step 2 is the core skill of two-step problems.
A word problem says "altogether" in the last sentence. This usually means you need to: — Find the total by adding."Altogether" is a key word that signals addition — find the total by combining all the amounts.
What does "fluency" mean in math? — Solving accurately and quickly from memory.Math fluency means knowing facts quickly and accurately — without counting on fingers every time.
What is 7 + 7? — 14.7 + 7 = 14. This is a doubles fact!
What is 8 + 8? — 16.8 + 8 = 16. Doubles!
What is 6 + 6? — 12.6 + 6 = 12. Another doubles fact.
Using the near-doubles strategy: if 5 + 5 = 10, what is 5 + 6? — 11.5 + 6 is one more than the double 5 + 5 = 10, so 5 + 6 = 11.
What is 9 + 9? — 18.9 + 9 = 18. Doubles fact!
Using make-a-ten: 8 + 7 = ? — 15.8 + 2 = 10, then 10 + 5 = 15. So 8 + 7 = 15.
What is 3 + 8? — 11.8 + 2 = 10, 10 + 1 = 11. So 3 + 8 = 11.
You know 4 + 4 = 8. What is 4 + 5? — 9.4 + 5 is one more than 4 + 4 = 8, so 4 + 5 = 9. Near-doubles!
What is the sum of the double 10 + 10? — 20.10 + 10 = 20. This completes the doubles facts up to 20.
What does it mean to have "equal groups"? — Groups where every group has the same number.Equal groups means every single group has exactly the same number of objects.
There are 3 groups with 5 in each group. What is the total? — 15.5 + 5 + 5 = 15. Three groups of 5 = 15.
What is 4 groups of 2? — 8.2 + 2 + 2 + 2 = 8. Four groups of 2 = 8.
Which addition shows 2 groups of 6? — 6 + 6.2 groups of 6 means adding 6 twice: 6 + 6 = 12.
There are 6 flowers in each vase and 3 vases. How many flowers total? — 18.6 + 6 + 6 = 18 flowers. Three vases with 6 each.
What is the total for 5 groups of 3? — 15.3 + 3 + 3 + 3 + 3 = 15.
4 bags each have 7 apples. How many apples in all? — 28.7 + 7 + 7 + 7 = 28 apples.
Which picture shows 3 equal groups of 4? — 3 groups, each with 4 objects.Equal groups means each group has the same count. 3 groups of 4 = each group has exactly 4.
Which digit at the end of a number tells you if it is even? — Only the ones (last) digit.Only the ONES (last) digit determines if a number is odd or even.
Is 8 odd or even? — Even.8 ends in 8, which is an even digit. 8 can be split into 4 + 4 with nothing left over.
Is 7 odd or even? — Odd.7 ends in 7, an odd digit. 7 cannot be split into two equal groups — there is always 1 left over.
Which numbers are ALL even? — 2, 4, 6, 8.2, 4, 6, 8 are all even. They all end in an even digit.
Which numbers are ALL odd? — 1, 3, 5.1, 3, and 5 all end in odd digits and cannot be split into equal pairs.
Is 14 odd or even? — Even.14 ends in 4, which is even. 14 = 7 + 7, split perfectly!
Is 19 odd or even? — Odd.19 ends in 9, which is odd. 19 cannot be split into two equal whole number groups.
You have 12 grapes and try to share them equally between 2 friends. Can you do it with none left over? — Yes, 12 is even.12 is even (ends in 2), so it splits into two equal groups of 6 with nothing left over.