Year 9 Integers (Directed Numbers) Worksheet — Level 1 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 9 integers worksheet.
Year 9 Integers (Directed Numbers) Worksheet — Level 1 — Practice Set 4 — Answers
Remember the sign rules. Use a number line if it helps.
Answer: −5
Subtracting a negative is the same as adding: -6 + 1 = -5
Answer: −4
Subtracting a negative is the same as adding: -7 + 3 = -4
Answer: 8
Move 9 to the right on the number line.
Answer: 12
Move 2 to the right on the number line.
Answer: 3
Adding a negative is the same as subtracting: 7 − 4 = 3
Answer: 11
Move 3 to the right on the number line.
Answer: 5
Adding a negative is the same as subtracting: 7 − 2 = 5
Answer: −9
Move 10 to the left on the number line.
Answer: 0
Move 3 to the right on the number line.
Answer: 12
Move 6 to the right on the number line.
Answer: 1
Subtracting a negative is the same as adding: -3 + 4 = 1
Answer: −3
Move 5 to the right on the number line.
Answer: 9
Subtracting a negative is the same as adding: 0 + 9 = 9
Answer: 2
Subtracting a negative is the same as adding: -1 + 3 = 2
Answer: −4
Move 2 to the left on the number line.
Answer: 1
Subtracting a negative is the same as adding: -8 + 9 = 1
Answer: −1
Move 1 to the right on the number line.
Answer: −2
Adding a negative is the same as subtracting: 7 − 9 = -2
Answer: 2
Subtracting a negative is the same as adding: -4 + 6 = 2
Answer: 0
Adding a negative is the same as subtracting: 1 − 1 = 0
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.