When do we first introduce children to subtraction? This article follows the sequence of place values and addition operations and is closely linked to the ideas introduced in the preceding articles of this series.
At Right Angles At Right Angles is a resource for school mathematics, published by the Azim Premji Foundation and the Community Mathematics Centre, Rishi Valley. It provides a national level platform where interested individuals can access resources, read about mathematical matters, contribute their own writing...
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