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Addition and Subtraction Basic Facts

number line.

'Addition and Subtraction Basic Facts' is a tool designed to help students to learn the addition and subtraction basic facts that they do not already know.

It uses tens frames as a model for teaching unknown facts.  Number facts are taught as a family of facts, with the two related addition facts and their equivalent subtraction facts taught together.

User Guide for Addition and Subtraction Basic Facts provides information for students and teachers on using this Learning Object.