20 exceptionally demanding number-target puzzles with extremely limited solution paths and a strong emphasis on sophisticated arithmetic strategy.

Number Target Challenge Level 19 contains some of the hardest puzzles in the entire series. Obvious combinations are unlikely to succeed, and pupils must often work backwards from the target or examine its factors before choosing a starting point.

The limited number of productive routes makes every decision important. Pupils need to preserve useful numbers, avoid uncontrolled calculations and understand how each intermediate result contributes to the final solution.

The resource provides:

20 highly challenging puzzles
Timer-enabled classroom PowerPoint
Standard macro-free PPTX
Printable PDF version
Solver-verified puzzle set
Clear presentation for display or independent work

Level 19 is suitable for highly confident KS3 and KS4 pupils, maths clubs, enrichment groups, competition-style lessons and pupils who enjoy sustained numerical problem-solving.

The puzzles offer a valuable opportunity to discuss resilience and strategic revision. An unsuccessful route is not wasted when pupils can explain why it failed and use that information to guide their next attempt.

This is the penultimate level of the 20-level programme and prepares pupils for the final Master Challenge.