149 Common Core-aligned math skills for grades 1-5. Every skill comes as three separate packs - Support, On Level and Challenge - so every child works on the same skill at the right level.

WHAT YOU GET

- 447 printable packs (149 skills x 3 levels)

- 1,341 worksheets, each followed by its own answer key

- 19,183 problems, checked by 3,945 automated tests

- 5 placement screeners with item-to-skill-to-pack routing

- 5 mixed review sets for spiral practice

- Error-analysis packs for every grade

- A Start Here contents PDF with teacher notes and the standards list

THE THREE LEVELS

Support: smaller numbers, no regrouping, a worked example, a strategy tip and a shorter page.

On Level: the full grade-level expectation.

Challenge: regrouping, unknowns in any position, multi-step and explain-why items, plus a Show Your Thinking task with a rubric on the key.

REAL FIGURES, NOT CLIP ART

Clocks, coins, rulers, protractor angles, bar graphs, line plots, number lines, coordinate grids, arrays, fraction models and unit cubes - all drawn to the numbers in each problem.

HONEST ABOUT WHAT THIS IS

Built to the US Common Core standards. Each pack practices the part of its standard named in its title. It is a practice and review library, not a full curriculum.

FORMAT

Print-ready US Letter PDFs (A4 printers scale them without cropping). Five ZIP files, one per grade, plus the Start Here PDF. Instant download.

LICENSE

One teacher or family, unlimited children, unlimited years.