Even Numbers

Ten-frames are relatively new to India. They are very useful at the beginning for learning the single-digit numbers. They also facilitate automatization of addition facts with single digit numbers. In addition, they can provide a lot of conceptual clarity wrt odd-even.

Three versions are included:

Check this divisibility test for eight.

Here is an interesting way one can multiply small and big numbers. Also known as Russian multiplication, the peasants are said to have devised this method.

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