Sherlock Bones and the Addition and Subtraction Adventure, John Bigwood Pat Thomas Haaland is a globe-trotting sensation

Haaland is a globe-trotting sensation

this book is a perfect blend of fun and learning

confidence

Things aren't going well for Greg Heffley

or indoor entertainment

Sherlock Bones and the Addition and Subtraction Adventure, John Bigwood Pat Thomas Haaland is a globe-trotting sensationSherlock Bones and Dr. Catson are entangled in an arithmetic adventure. They must follow a teasing trail of addition and subtraction themed maths puzzles, and it's up to the reader to solve each sum, all in the hope of foiling Professor Moriratty's evil plan. This charming maths activity book features 'Sherlock's Secret Solver' magnifying glass which reveals the answer to each puzzle when placed over a moir area, allowing children to test their