3rd grade · Math · Unit 13 of 16
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.
New York State Learning Standards learning standard: NY-3.OA.8 · solving two-step word 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
Two-Step Stories in New York
In the New York State Learning Standards, this is unit 13 of 16 in 3rd grade Math, after Times Tens and before Halves & Fourths of an Inch.
Gradelings describes a child's practice on this unit as Beginning, Approaching, Meeting or Exceeding (Four practice steps). That reflects practice, not a report-card mark: the teacher decides the mark.
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
Mia has 3 bags with 9 grapes in each and eats 5. Which equation finds the grapes left, g?
- 3 × (9 + 5) = g
- 3 × 9 − 5 = g
- 3 × 9 + 5 = g
- 3 + 9 − 5 = g
3 × 9 − 5 = g
Hint: First find all the grapes (equal groups). Then take away the ones eaten.
Question 2
Noah adds 847 + 116 and gets 1163. 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 800 + 100 = 900.
Question 3
A garden has 6 rows of 5 plants. 11 more plants are added. How many plants now?
- 41
- 31
- 51
- 40
- 42
41
Hint: First 6 × 5 = 30. Then add 11.
Question 4
Leo picks 18 apples in the morning and 14 in the afternoon. Leo puts them in bags of 8. How many bags are filled?
- 4
- 3
- 32
- 1
- 5
4
Hint: Add first: 18 + 14 = 32. Then 32 ÷ 8.
Question 5
Lena picks 22 apples in the morning and 2 in the afternoon. Lena puts them in bags of 8. How many bags are filled?
- 3
- 4
- 5
- 24
- 2
3
Hint: Add first: 22 + 2 = 24. Then 24 ÷ 8.
Question 6
Priya has 5 bags with 6 grapes in each and eats 3. Which equation finds the grapes left, g?
- 5 + 6 − 3 = g
- 5 × (6 + 3) = g
- 5 × 6 − 3 = g
- 5 × 6 + 3 = g
5 × 6 − 3 = g
Hint: First find all the grapes (equal groups). Then take away the ones eaten.