The printed book, in full colour
£14.99
- 163 pages, full colour, on white paper
- 8.5 x 11 in (21.6 x 27.9 cm), with room to write in the book
- Printed and posted by Amazon
- ISBN 979-8167015180
All of Key Stage 2 maths in ten strands, from place value to statistics, with every topic on one two-page spread.
Every question. One true answer.

Each of the 44 topics fills two facing pages. The left page teaches one idea; the right page practises it, including the mistakes children really make. These are real pages from the book.

The book covers the mathematics of the national curriculum for Years 3 to 6. Each topic starts from its Year 3 idea and climbs to what the Year 6 tests ask, so it is useful in any year of Key Stage 2.
A plan to work through, not a book to read. The study plan at the front spreads the topics over the weeks and brings each one back the next day, a week later and three weeks later.



Every answer in the book was worked out two separate ways and compared with what is printed, before the book went to print. The checking itself was tested with wrong answers planted on purpose, and it caught every one.
Every answer at the back says why it is right. Where a wrong answer is a common slip, it is named and explained, and each answer says which topic and page to go back to.

A full-colour paperback, printed and posted by Amazon.
£14.99
Children in Years 3 to 6, aged 7 to 11. Each topic starts from its Year 3 idea and climbs to what the Year 6 tests ask, so a child can start in any year of Key Stage 2.
It covers the mathematics of the national curriculum for Years 3 to 6, and its test-style questions carry marks as the tests do. The questions are original: none is taken from a real test.
Start each strand with its check-up, then work on the topics it points to: one topic is one spread, a good size for one session. Do the review at the end of each strand, and mark the questions your child was not sure of.
No. This book is not affiliated with, or endorsed by, the Department for Education, the Standards and Testing Agency or any exam board.
It comes from the Latin unum tantum, ‘only one’: every question has only one right answer.
Every answer was checked two ways, but if something looks wrong, please write to support@bitygan.com.

Start here: the four kinds of 3D question, 200 in all, with four options each.
See the book
Harder questions with five options each, and two timed tests: 240 in all.
See the book
All six PAT question types, 768 questions and 3 full-length practice tests.
See the book