"Version 1 from every level in the complete What Number Am I? progression. This collection contains twenty puzzles at each of twenty difficulty stages — 400 puzzles in total — moving from accessible whole-number deduction through factors, multiples, digit properties, rounding, remainders, integers, decimals, fractions, percentages and expert multi-constraint reasoning.

Included: 20 editable PowerPoints, 20 full-page PDFs, 20 condensed PDFs, complete answer explanations, highlighted level ladders and reusable 1–100 working grids. Levels 1–4 also include supported PDFs and range grids.

A practical progression sampler for whole-class reasoning, differentiation, tutoring, homework and enrichment. This product is supplied in two ZIP parts; download both parts."