3rd grade · Math · Unit 12 of 14
Two-Step Stories
Solve problems in two steps
What your child practices
Word problems that take two steps with any of the four operations, choosing an equation with a letter for the unknown, and checking an answer by estimating.
California Content Standards learning standard: 3.OA.8 · solving two-step problems with the four operations and checking answers by estimating
How we explain it
Children can open this short lesson before they practice.
- Read the story and find the two steps.
- Do the first step, then use its answer in the second.
- Check: is the answer close to an estimate?
Example: Maya buys 4 packs of 6 stickers and gives away 5. How many are left? Step 1: 4 × 6 = 24. Step 2: 24 − 5 = 19. Answer: 19
Sample questions
A taste of this unit. In the app, questions change every time and get easier or harder to match your child.
Question 1
Priya buys 2 books that cost $4 each and pays with $10. How many dollars of change?
- 12
- 4
- 3
- 1
- 2
2
Hint: The books cost 2 × 4 = $8. Then 10 − 8.
Question 2
Noah has 6 bags with 9 grapes in each and eats 5. Which equation finds the grapes left, g?
- 6 × 9 + 5 = g
- 6 + 9 − 5 = g
- 6 × (9 + 5) = g
- 6 × 9 − 5 = g
6 × 9 − 5 = g
Hint: First find all the grapes (equal groups). Then take away the ones eaten.
Question 3
Maya adds 675 + 252 and gets 1227. Round to the nearest hundred to check. Is that answer reasonable?
- No, it is far from the estimate
- Yes, it is close to the estimate
No, it is far from the estimate
Hint: Round: about 700 + 300 = 1000.
Question 4
Priya picks 38 apples in the morning and 10 in the afternoon. Priya puts them in bags of 6. How many bags are filled?
- 8
- 10
- 9
- 48
- 7
8
Hint: Add first: 38 + 10 = 48. Then 48 ÷ 6.
Question 5
Mia has 4 bags with 5 grapes in each and eats 4. Which equation finds the grapes left, g?
- 4 × 5 − 4 = g
- 4 × 5 + 4 = g
- 4 + 5 − 4 = g
- 4 × (5 + 4) = g
4 × 5 − 4 = g
Hint: First find all the grapes (equal groups). Then take away the ones eaten.
Question 6
Jay adds 371 + 333 and gets 904. Round to the nearest hundred to check. Is that answer reasonable?
- Yes, it is close to the estimate
- No, it is far from the estimate
No, it is far from the estimate
Hint: Round: about 400 + 300 = 700.