3rd Grade Number Lines Worksheet — Level 2 — Practice Set 3 — Answers
Answer sheet with worked solutions for the 3rd Grade place value worksheet.
Success TutoringWorksheetsAnswer sheet3rd Grade · Mathematics · Place Value3rd Grade Number Lines Worksheet — Level 2 — Practice Set 3 — Answers
First find how much each space is worth: (end − start) ÷ number of spaces.
1.A number line goes from 200 to 400 and is split into 4 equal spaces. The arrow is 2 spaces along from 200. What number does the arrow point to?
Answer: 300
- Each space is (400 − 200) ÷ 4 = 50
- 200 + 2 × 50 = 300
2.A number line goes from 700 to 800 and is split into 4 equal spaces. The arrow is 2 spaces along from 700. What number does the arrow point to?
Answer: 750
- Each space is (800 − 700) ÷ 4 = 25
- 700 + 2 × 25 = 750
3.What number is halfway between 80 and 580?
Answer: 330
- 580 − 80 = 500; half of that is 250
- 80 + 250 = 330
4.A number line goes from 200 to 700 and is split into 5 equal spaces. The arrow is 2 spaces along from 200. What number does the arrow point to?
Answer: 400
- Each space is (700 − 200) ÷ 5 = 100
- 200 + 2 × 100 = 400
5.A number line goes from 800 to 900 and is split into 4 equal spaces. The arrow is 2 spaces along from 800. What number does the arrow point to?
Answer: 850
- Each space is (900 − 800) ÷ 4 = 25
- 800 + 2 × 25 = 850
6.What number is halfway between 330 and 370?
Answer: 350
- 370 − 330 = 40; half of that is 20
- 330 + 20 = 350
7.A number line goes from 100 to 180 and is split into 4 equal spaces. The arrow is 1 space along from 100. What number does the arrow point to?
Answer: 120
- Each space is (180 − 100) ÷ 4 = 20
- 100 + 1 × 20 = 120
8.A number line goes from 100 to 350 and is split into 5 equal spaces. The arrow is 4 spaces along from 100. What number does the arrow point to?
Answer: 300
- Each space is (350 − 100) ÷ 5 = 50
- 100 + 4 × 50 = 300
9.What number is halfway between 120 and 680?
Answer: 400
- 680 − 120 = 560; half of that is 280
- 120 + 280 = 400
10.A number line goes from 900 to 1,900 and is split into 10 equal spaces. The arrow is 9 spaces along from 900. What number does the arrow point to?
Answer: 1,800
- Each space is (1,900 − 900) ÷ 10 = 100
- 900 + 9 × 100 = 1,800
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
- For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
- Celebrate what went well first, then pick one thing to work on next.