Number Target Challenge Level 18: Expert Reasoning | 20 Maths Puzzles

20 expert reasoning puzzles with extremely limited routes, demanding precise factor awareness, creative arithmetic and sustained problem-solving. Level 18 is designed for pupils who enjoy difficult numerical challenges and are prepared to explore several possible structures before finding a valid solution. The puzzle set increasingly rewards elegant routes. A successful answer may depend on recognising an unusual division, constructing a precise adjustment or using the large numbers in a counterintuitive order. The resource contains: 20 expert-level target puzzles Timer-enabled PowerPoint presentation Macro-free PPTX alternative Printable PDF Solver-verified targets Progressive sequencing within the level Level 18 is particularly suitable for maths clubs, competition preparation, high-attaining KS3 or KS4 pupils, enrichment lessons and extension activities. Although speed can be used as an optional competitive element, the main value comes from the quality of the reasoning. Pupils should be encouraged to record attempted routes, evaluate why they failed and refine their strategy. Teachers can also ask pupils to compare a long solution with a more elegant alternative or identify the key insight needed to unlock the puzzle. This is the third expert level and prepares pupils for the two most demanding stages of the complete programme.

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1 level, containing 20 puzzles. Includes 1 printable PDF, 1 standard PPTX and 1 optional timer-enabled PPTM presentation, plus the resource guide, in one ZIP download.