Work through the levels in order. Type your answer and press Check — open the worked solution if you get stuck. Answers like -6, 3/4 or 0.25 are typed exactly as shown. A ⭐ Bonus Challenge at the end is extra credit — skip it if the rest was hard work.
Level 1 · Warm-up
1 A wall is built in layers of 6 bricks. With 20 bricks, how many COMPLETE layers can be built?
Show worked solution
20 ÷ 6 = 3 remainder 2: 3 complete layers.
2 Four children each play every other child once at chess. How many games are played?
Show worked solution
3 + 2 + 1 = 6 games.
3 14 books are packed into boxes that hold 4 books each. What is the fewest boxes that will do?
Show worked solution
14 ÷ 4 = 3 remainder 2 → 4 boxes.
Level 2 · Core
4 Maya builds a wall in rows of 6 bricks, finishing each row before starting the next. She has 26 bricks and lays every one. Which row is she working on when the final brick goes down? (Give the number.)
Show worked solution
Four layers are complete; the 2 leftover bricks start the 5th layer.
5 Twenty 400 g parcels go into bags that may hold no more than 1.5 kg each. What is the fewest bags that will do?
Show worked solution
1500 ÷ 400 → 3 boxes per bag. 20 ÷ 3 = 6 remainder 2 → 7 bags.
6 Two painters each take 40 minutes to paint a fence on their own. They paint the fence together, starting at 8:35 am. What time do they finish? (Write like 8:55)
Show worked solution
Together: 40 ÷ 2 = 20 minutes. 8:35 + 20 min = 8:55 am.
Level 3 · Challenge
7 Seven teams enter a competition. Each team plays every other team TWICE (home and away). How many matches are there?
Show worked solution
Once each: 6 + 5 + 4 + 3 + 2 + 1 = 21. Twice: 42 matches.
8 A savings jar starts the week empty. Its running total is $10 when Monday finishes, $28 when Wednesday finishes and $70 when Friday finishes. The Tuesday, Wednesday and Friday deposits are equal. How much went in on Thursday? (Number only.)
Show worked solution
Tue + Wed = $18, so $9 each; Friday is $9 too. Thu + Fri = 70 − 28 = $42, so Thursday = 42 − 9 = $33.
9 Ana can sort the mail alone in 20 minutes; Ben takes 30 minutes alone. Working together from 10:00 am, when do they finish? (Write like 10:12)
Show worked solution
Together 5 jobs an hour, so one job takes 60 ÷ 5 = 12 minutes: 10:12 am.