XNumbers are like crosswords, except all the clues are sums and all the answers are numbers.

XNumbers are an ideal classroom resource for any mathematics department, giving all abilities the chance to consolidate skills learned in a fun way.

A fully photocopiable pack of XNumbers will provide you with:

XNumbers set on specific arithmetic processes at each level of the National Curriculum, ideal for extension work, remedial work, lesson enders or homework tasks.

XNumbers which use a mixture of arithmetic processes at each level of the National Curriculum, perfect for revision, excellent to set the class if a member of department is absent.

XNumbers of a more challenging nature, testing logical processes as well as arithmetic skills.

XNumbers have been developed specifically with the National Curriculum in mind and have been extensively tested in a classroom situation..

The main focus is on the practice of arithmeticskills using pencil and paper, and as such the majority of puzzles specify that calculators should not be used.

The following table sets out the areas of the National Curriculum which are covered by each pack. Please note that XNumbers within each pack appear in that pack only and are not duplicated in the other pack.

Each pack contains over 90 original and fully photocopiable puzzles.

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NumberScramble is a new twist on the original XNumber idea . Solve the clues, then enter the solutions into the grid. However, some of the solutions need to be scrambled before they are entered into the grid, providing more of a challenge to hardened puzzle solvers. Not only are arithmetic skills tested, powers of logic and deduction are stretched to the extreme, especially when the NumberScramble is tied in with a Star XNumber or a Missing Operator XNumber.

NumberScramble contains 10 puzzles, with difficulty ranging from the more straight forward basic puzzles through to the more taxing MissingOperator, Multiples and Star XNumbers. Each puzzle has been saved as an EXCEL spreadsheet and has been formatted to print out onto an A4 sheet of paper without any need for adjustment.

XNumbers: Interactive is a program which generates XNumbers on topics chosen by you, the user. Once the XNumber has been generated, you can then solve the puzzle on screen, or if you prefer to use pencil and paper, print the puzzle out and solve it. The computer can also check your solution and if you require, it can show you the squares where you have made any mistakes.

XNumbers: Interactive allows you to generate an XNumber up to 8 by 8 and on any topic or combination of topics from the following: