Free Year 3 3-digit addition with regrouping Practice | Skillo
Year 3 students sitting their first NAPLAN need to be confident with 3-digit addition with regrouping. Add and subtract two- and three-digit numbers using place value to partition, rearrange and regroup numbers without a calculator. Skillo has targeted practice questions for this exact skill, mapped to the Australian Curriculum v9.0, free and ready to go.
Start Free Practice →What is tested: 3-digit addition with regrouping
- ✓Add and subtract two- and three-digit numbers using place value to partition, rearrange and regroup numbers without a calculator.
- ✓Questions may include word problems set in real Australian contexts
- ✓Both calculator and non-calculator question types are covered
Sample questions
Question 1 — Easy
The Sydney Aquarium had 465 fish in its tanks. On Monday, 138 new fish arrived. On Tuesday, 97 fish were moved to a different aquarium. How many fish are in the tanks now?
Answer: First, add the new fish: 465 + 138 = 603. Then subtract the fish that were moved: 603 − 97 = 506. The total remaining in the tanks is 506. Option B results from subtracting before adding (465 − 138 + 97 = 424, not 330 — students who subtract 97 from 138 first get 41, then add to 465 = 506, matching the correct answer — see distractor rationale). Option C results from adding all numbers without subtracting. Option D results from a regrouping error in the subtraction step.
Question 2 — Medium
Priya is collecting cans for a school fundraiser. She collected 253 cans in Week 1 and 174 cans in Week 2. Her goal is to collect 500 cans in total. How many more cans does Priya still need to reach her goal?
Answer: First, calculate the total cans collected so far: 253 + 174 = 427. Then find the difference between the goal and the total collected: 500 − 427 = 73. The remaining cans needed is 73. Option A results from a regrouping error in the subtraction step (calculating 500 − 427 as 83). Option C results from only subtracting the Week 2 amount from the goal (500 − 174 = 326, not 173 — see distractor rationale). Option D is the total already collected, not the remaining amount needed.
Question 3 — Hard
Priya is collecting cans for a charity drive. She collected 256 cans in March and 174 cans in April. She gave 118 cans to a local shelter. How many cans does Priya have remaining?
Answer: First, calculate the total cans collected: 256 + 174 = 430. Then subtract the cans given away: 430 − 118 = 312. Option B is wrong because the student stopped after the addition and forgot to subtract. Option C is wrong because the student subtracted 118 from 256 only, ignoring April's cans. Option D is wrong because the student subtracted 174 instead of 118 from the total.
How to use Skillo for Year 3 Numeracy
- Select Year 3 and Numeracy on the home screen
- Use Quick Practice — questions on 3-digit addition with regrouping will appear as part of the session
- Check the Skill Breakdown on your profile to track your accuracy on 3-digit addition with regrouping 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.
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