Year 9 Integers (Directed Numbers) Worksheet — Level 3 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 9 integers worksheet.
Year 9 Integers (Directed Numbers) Worksheet — Level 3 — Practice Set 3 — Answers
Remember the sign rules. Use a number line if it helps.
Answer: 120
Same signs give a positive product.
Answer: 60
Same signs give a positive product.
Answer: −4
Adding a negative is the same as subtracting: 8 − 12 = -4
Answer: 1
Move 7 to the left on the number line.
Answer: −2
Different signs give a negative quotient.
Answer: 11
Move 9 to the right on the number line.
Answer: −36
Move 19 to the left on the number line.
Answer: 15
Same signs give a positive product.
Answer: −3
Different signs give a negative quotient.
Answer: −16
Adding a negative is the same as subtracting: -9 − 7 = -16
Answer: −6
Subtracting a negative is the same as adding: -17 + 11 = -6
Answer: 24
Same signs give a positive product.
Answer: 4
Same signs give a positive quotient.
Answer: 17
Same signs give a positive product.
Answer: 18
Move 15 to the right on the number line.
Answer: −3
Move 14 to the right on the number line.
Answer: −24
Adding a negative is the same as subtracting: -16 − 8 = -24
Answer: −6
Different signs give a negative quotient.
Answer: 80
Same signs give a positive product.
Answer: 33
Move 16 to the right on the number line.
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.