Describe how you regroup when you add the sum of 64+ 43

1 answer:

8 0

6 4
   +
   4    3
   _____
   1 0 7
   ______

3 + 4 = 7 Put down the 7.

6 + 4 = 10 Put down the 0 first, and then 1 is left. Put down the 1 also to the extreme left.

So the answer is 107

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Binomial Series

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