Year 9 Integers (Directed Numbers) Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 9 integers worksheet.
Success TutoringWorksheetsAnswer sheetYear 9 · Mathematics · IntegersYear 9 Integers (Directed Numbers) Worksheet — Level 1 — Practice Set 3 — Answers
Remember the sign rules. Use a number line if it helps.
Answer: −8
Adding a negative is the same as subtracting: -2 − 6 = -8
Answer: 0
Move 5 to the right on the number line.
Answer: 9
Subtracting a negative is the same as adding: 6 + 3 = 9
Answer: −17
Adding a negative is the same as subtracting: -7 − 10 = -17
Answer: −7
Move 3 to the left on the number line.
Answer: −7
Move 9 to the left on the number line.
Answer: 14
Move 5 to the right on the number line.
Answer: 12
Subtracting a negative is the same as adding: 4 + 8 = 12
Answer: 9
Move 3 to the right on the number line.
Answer: 14
Subtracting a negative is the same as adding: 4 + 10 = 14
Answer: −19
Adding a negative is the same as subtracting: -10 − 9 = -19
Answer: −4
Move 3 to the right on the number line.
Answer: 3
Move 3 to the right on the number line.
Answer: −4
Move 8 to the left on the number line.
Answer: −16
Move 8 to the left on the number line.
Answer: 0
Adding a negative is the same as subtracting: 1 − 1 = 0
Answer: 13
Subtracting a negative is the same as adding: 10 + 3 = 13
Answer: 10
Subtracting a negative is the same as adding: 3 + 7 = 10
Answer: 7
Subtracting a negative is the same as adding: 3 + 4 = 7
Answer: 20
Subtracting a negative is the same as adding: 10 + 10 = 20
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.