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Move beyond an answer. Explore visual reasoning puzzles and interactive challenges across all 6 subjects, with instant rule-based verification and step-by-step explanations.
What belongs in each mystery box?
Every mystery box holds the same value. Make the two sides balance.
0 of 7 challenge types explored at this stage
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Streaks count different challenges solved consecutively in this session and reset after an incorrect check. Repeating a solved question adds no points. Original rule-based practice. Age bands are guidance, not an assessment or curriculum certification.
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Find the area of a trapezium with parallel sides 9 cm and 15 cm, and perpendicular height 5 cm.
Calculate the area of a trapezium from its parallel sides and perpendicular height using A = ½(a + b)h.
0 of 4 solved in this round
Featured, challenges & worksheets in Maths
Compound L-shape area
Partition an L-shaped rectilinear figure into two non-overlapping rectangles to calculate its total area.
Pythagoras: hypotenuse
Calculate the hypotenuse of a right-angled triangle from two perpendicular side lengths.
Right-triangle trigonometry (SOHCAHTOA)
Apply sine, cosine and tangent ratios (SOHCAHTOA) in right-angled triangles and simplify to lowest terms.
Circle theorems & cyclic quadrilaterals
Apply circle theorems for the angle at the centre (2× circumference angle) and opposite angles in a cyclic quadrilateral.