This is an arithmetic adventure starring Sherlock Bones and Dr. Catson - two characters who will help your children solve all kinds of maths problems.
The detective duo have to follow a trail of addition and subtraction-themed puzzles in an attempt to scupper Professor Moriratty's evil plan. Will your children be able to help?
This amazing activity book features Sherlock's Secret Solver - a magnifying glass-esque tool that reveals the answer to puzzles when placed over a moire area - meaning children can practice their answers over and over again.
Product code: SHRB
Publisher: Michael O'Mara Books Ltd
Dimensions: 29.0cm x 21.0cm
Publish date: 12/07/2018
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