Free Year 7 Integer addition and subtraction Practice | Skillo
Skillo provides free Year 7 NAPLAN Integer addition and subtraction practice (AC9M7N07) for Australian students. No signup, no email, no credit card. Practice questions aligned with the ACARA Australian Curriculum v9.0 strand. Open and start in 10 seconds.
Year 7 students facing their third NAPLAN need to be confident with integer addition and subtraction. Compare, order and solve problems involving addition and subtraction of integers. Skillo has targeted practice questions for this exact skill, mapped to the Australian Curriculum v9.0, free and ready to go.
No account needed. No email. No credit card.
What does the Year 7 NAPLAN Integer addition and subtraction test cover?
- Compare, order and solve problems involving addition and subtraction of integers.
- Questions may include word problems set in real Australian contexts
- Both calculator and non-calculator question types are covered
Try a sample Integer addition and subtraction question
Question 1 — Easy
The temperature in Melbourne dropped from 19°C at noon to −3°C at midnight. By how many degrees did the temperature fall?
Answer: Temperature fall = 19 − (−3) = 19 + 3 = 22°C.
Question 2 — Medium
A mining shaft has two levels. Level 1 is at −35 m and Level 2 is at −98 m. A worker travels from Level 2 up to Level 1, then continues upward to the surface (0 m). What is the total distance the worker travels?
Answer: From Level 2 (−98 m) to Level 1 (−35 m) is −35 − (−98) = 63 m, and from Level 1 (−35 m) to the surface (0 m) is 0 − (−35) = 35 m, giving a total of 63 + 35 = 133 m. Option A (98 m) is the error of only calculating the depth of Level 2 without considering the two-stage journey. Option C (63 m) only accounts for the first leg of the journey. Option D (−133 m) incorrectly applies a negative sign to a distance, confusing displacement with distance.
Question 3 — Hard
A drone is flying at an altitude of 85 m above ground. It then descends 120 m. Which of the following correctly describes the drone's new position, and what calculation supports it?
Answer: Starting at +85 m and descending 120 m gives 85 − 120 = −35, meaning 35 m below ground level; option A is correct. Option B finds the difference between 120 and 85 without considering direction, giving a positive result that ignores the drone going below ground. Option C incorrectly treats the starting position as negative (−85) then subtracts a further 120. Option D uses the correct magnitude but reverses the signs, effectively calculating a rise from −85 rather than a descent from +85.
How should my child prepare for Year 7 NAPLAN Integer addition and subtraction?
- Select Year 7 and Numeracy on the home screen
- Use Quick Practice — questions on integer addition and subtraction will appear as part of the session
- Check the Skill Breakdown on your profile to track your accuracy on integer addition and subtraction specifically
- Review explanations after each question to understand the reasoning behind correct answers
Skillo is free, requires no email or account details, and is built specifically for Australian students. Every question is mapped to the Australian Curriculum v9.0 and filtered by skill so your child practises exactly what they need.
Common questions about NAPLAN Integer addition and subtraction
Read more about how Skillo protects student privacy →
Is Skillo really free?
Yes. Skillo is completely free for all Australian students — no subscription, no credit card, no hidden paywall. No free trial that converts to paid.
Does my child need an account?
No. Skillo doesn't require an account to practise. Open any page and start immediately — no email, no registration.
Does Skillo collect any personal information?
No. Skillo is built to require zero personal information. No name, no email, no date of birth is collected from students.
Is Skillo affiliated with NAPLAN?
Skillo's NAPLAN-style practice is authored independently. NAPLAN® is a registered trademark of ACARA. Skillo is not affiliated with, endorsed by, or sponsored by ACARA.
No account needed. No email. No credit card.
About this practice
Skillo's NAPLAN-style practice is authored independently. NAPLAN® is a registered trademark of ACARA. Skillo is not affiliated with, endorsed by, or sponsored by ACARA.