any one knows whats 11x121=

Question

anonymous · Answer

1331?

diyadiya · Answer

1331

anonymous · Answer

R u supposed to do this by hand?

anonymous · Answer

U asked the same question twice, why?

anonymous · Answer

what do u want to lern especially?

anonymous · Answer

11 multiples of 121 = 11*121 = 11(121) = 121 + 1210 =1331

anonymous · Answer

This question has already been answered a couple posts back.

anonymous · Answer

http://openstudy.com/groups/mathematics#/groups/mathematics/updates/4e52d0490b8b958804b64315

anonymous · Answer

cool thing is it looks like binomial expansion

anonymous · Answer

$$11^0=1$$
$$11^1=11$$
$$11^2=121$$
$$11^3=1331$$
$$11^4=14641$$

anonymous · Answer

another cool thing is how easy it is to multiply a number by 11
just copy it down twice, with the second one one place to the left

11 * 1243
                   1 2 5 3
                1 2 5 3
______________________
                1 3 7 8 3

anonymous · Answer

isn't the answer the following?

  1243
1243  
------
13,673