Author(s): A. S. Kalra
In the 'Excel Basic Skills' Series. This aid to addition and subtraction for 10 to 12 year olds presents worked examples and many exercises. Revises the skills needed to add and subtract numbers up to 999 and extends these skills to larger numbers. Covers place value trading and problem solving using the correct order of operations. By the author of Excel Year 5 Maths and Excel Year 6 Advanced Maths.