Year 9 Integers (Directed Numbers) Worksheet — Level 2 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 9 integers worksheet.
Year 9 Integers (Directed Numbers) Worksheet — Level 2 — Practice Set 3 — Answers
Remember the sign rules. Use a number line if it helps.
Answer: −25
Move 7 to the left on the number line.
Answer: 48
Same signs give a positive product.
Answer: −9
Different signs give a negative product.
Answer: 3
Adding a negative is the same as subtracting: 11 − 8 = 3
Answer: 5
Same signs give a positive quotient.
Answer: 162
Same signs give a positive product.
Answer: −2
Different signs give a negative quotient.
Answer: −7
Move 10 to the right on the number line.
Answer: −19
Adding a negative is the same as subtracting: -16 − 3 = -19
Answer: 28
Subtracting a negative is the same as adding: 10 + 18 = 28
Answer: 5
Subtracting a negative is the same as adding: 3 + 2 = 5
Answer: −7
Move 17 to the left on the number line.
Answer: −8
Move 11 to the left on the number line.
Answer: 14
Subtracting a negative is the same as adding: -5 + 19 = 14
Answer: 306
Same signs give a positive product.
Answer: −1
Different signs give a negative quotient.
Answer: −4
Different signs give a negative quotient.
Answer: −1
Different signs give a negative quotient.
Answer: −19
Adding a negative is the same as subtracting: -1 − 18 = -19
Answer: 60
Same signs give a positive product.
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.