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 paper folded once has how many layers?
Show worked solution
One fold doubles → 2 layers.
2 Two cubes glued together: how many faces are hidden?
Show worked solution
One join hides 2 faces (one on each cube).
3 Walk 10 m north then 10 m south. How far from the start?
Show worked solution
They cancel → 0 m.
Level 2 · Core
4 A 10×10 paper folded twice (4 layers) has 8 squares cut from the stack. Area left?
Show worked solution
100 − 8×4 = 68.
5 Two cubes glued: how many faces are VISIBLE?
Show worked solution
12 − 2 = 10.
6 Walk N 40, E 30, S 10. How far north of the start are you?
Show worked solution
40 − 10 = 30 m north (and 30 m east, but the question asked north!).
Level 3 · Challenge
7 Four cubes in a 2×2 slab: visible faces?
Show worked solution
24 total − 2×4 joins = 16.
8 A paper folded 3 times: how many layers?
Show worked solution
2 → 4 → 8 layers.
9 Walk E 60, N 25, W 60, S 5. How far from the start, and which direction? (like "20m north")
Show worked solution
E/W cancel; N−S = 20 → 20 m north.