Tarquin
Cross Numbers
A Collection of 32 Mathematical Puzzles
What is a cross number puzzle?
Cross numbers are the mathematical equivalents of crossword puzzles. Instead of words, each answer is a number written into a grid, one digit per square. Where across and down answers share a square, each must agree with the other.
In practice, every crossnumber works the same way. You read the clues, work out where to place the number, and check each digit against the crossing answers. Each number-cross puzzle has a single solution, so you always know when the grid is complete.
Number puzzles that grow in difficulty
The earlier puzzles in the book only require simple arithmetic and basic knowledge, but, as the sequence continues, so the level of difficulty increases. Early clues use addition, subtraction, multiplication and division: steady mental arithmetic practice in a puzzle format.
The later ones also demand some enjoyable logical reasoning to tease out the solutions. These are brain teasers in which one confirmed answer unlocks the next: at this stage, it reads as much like a logic puzzle book as an arithmetic one. For the final puzzles, access to a calculator would be helpful and some would say essential.
Who will enjoy this cross maths puzzle collection
Anyone who enjoys arithmetic and likes to search for patterns and relationships between numbers will find much to please them in this puzzle book. It suits an independent learner working through it in order, or a teacher looking for a maths book of extension puzzles.
In the classroom, a single cross maths puzzle works well as a starter or as a challenge for early finishers. Calculators are best saved for the final puzzles.
Get Sample Pages Emailed to You
Ebook formats for this logic puzzle book
Ebook supplied within Adobe Digital Editions or in other formats where you get your eBooks ISBN 9781858118345
This book is also in Tarquin Select packages with 100s of other resources for a small fee. Start with the first puzzle and see how many squares you can fill before you need a second look at the clues.
