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Teaching in Room 9. Add/Subtract with Regrouping 3 | 2nd Grade Math. Special | 28m 38s Video has Closed Captions | CC. Addition and subtraction with regrouping using different strategies to solve.
In this KS2 Maths article you'll find out how to use mental methods when doing addition and subtraction in your head. We also have KS2 Maths videos, a quiz and lots of examples.