Subtracting Practice Pad 5-6Author: Sam Smith Illustrator: Maddie Frost Age: 5 6 English Page: 150 Paperback 19. 6 cm x 15. 4cm A handy book packed with 140 pages of activities to help children practise subtracting with numbers from 0 to 20. Part of the Usborne Key Skills series that supports the maths children learn at school. Activities include number lines, missing numbers, quizzes and more, and get progressively harder. Answers are at the back of the book.