## Curious calculations

Your calculator can do tricks:

(1) Try these multiplications. What do you notice?

Does the pattern continue if you use longer strings of 1’s?

(2) Enter the number 142,857 (preferably, into the memory) and multiply by 2,3,4,5,6 and 7. What do you notice?

Enjoy math!!!

Regards,

Nalin Pithwa

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## 2 Comments

I]1×1=1

11×11=121

111×111=12321

1111×1111=1234321

11111×11111=123454321

II] 142857 When multiplied by any number(within 10) gives result with only the digits-1,4,2,8,5,7,

very good keep it up!