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2023 Math Kangaroo

Problem 4

Problem 4 · 2023 Math Kangaroo Easy
Spatial & Visual Reasoning tiling-tessellationcomposition

Mr Beaver re-arranges the parts to build a kangaroo. Which part is missing?

Figure for Math Kangaroo 2023 Problem 4
Show answer
Answer: A
Show hints
Hint 1 of 3
The kangaroo is built from the same set of parts, just rearranged.
Still stuck? Show hint 2 →
Hint 2 of 3
Cross off each part you can find in the kangaroo, one by one.
Still stuck? Show hint 3 →
Hint 3 of 3
The part that has no match in the kangaroo is the missing one.
Show solution
Approach: match each part to the kangaroo and find the leftover
  1. Look at each part one at a time and try to find it inside the kangaroo.
  2. Tick off every part you can match.
  3. One part is never used in the kangaroo — that leftover part is the answer, option A.
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