Year 9 Integers (Directed Numbers) Worksheet — Level 3 — Answers
Answer sheet with worked solutions for the Year 9 integers worksheet.
Year 9 Integers (Directed Numbers) Worksheet — Level 3 — Answers
Remember the sign rules. Use a number line if it helps.
Answer: −13
Adding a negative is the same as subtracting: -2 − 11 = -13
Answer: −16
Different signs give a negative product.
Answer: 85
Same signs give a positive product.
Answer: −12
Different signs give a negative product.
Answer: 2
Same signs give a positive quotient.
Answer: −17
Adding a negative is the same as subtracting: -14 − 3 = -17
Answer: −198
Different signs give a negative product.
Answer: −78
Different signs give a negative product.
Answer: 4
Same signs give a positive quotient.
Answer: 144
Same signs give a positive product.
Answer: 35
Subtracting a negative is the same as adding: 18 + 17 = 35
Answer: 6
Same signs give a positive quotient.
Answer: −3
Adding a negative is the same as subtracting: 12 − 15 = -3
Answer: −27
Move 8 to the left on the number line.
Answer: −5
Different signs give a negative quotient.
Answer: −4
Different signs give a negative quotient.
Answer: 12
Same signs give a positive product.
Answer: 2
Same signs give a positive quotient.
Answer: 27
Subtracting a negative is the same as adding: 18 + 9 = 27
Answer: −7
Move 11 to the left 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.