Dimensions
146 x 222 x 6mm
An Easy Way to Learn Your Subtraction Tables.
This wipe-off book makes it easy for you to learn the subtraction tables, from zero to ten, all by yourself.
First, read over the subtraction tables on each page. Then cover up the answers with the wipe-off flap on the back cover. Now you're ready to test yourself. Write the answers on the flap with a grease pencil or erasable felt-tip pen. You can wipe off the flap with a damp cloth and use this book over and over until you get a perfect score.