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Squares

Level 22 / mastery

4d square digits 1-3

5 visual steps / 4-digit square split

1. Split thousands

1231^21. Split thousands split into base and tail 1231=1000+231base square1000^21000000double product_tail square_
1231 as 1000 + 231.

1231 as 1000 + 231.

2. Double product

1231^22. Double product split into base and tail 1231=1000+231base square1000^21000000double product2 x 1000 x 231462000tail square_
2 x 1000 x 231 = 462000.

2 x 1000 x 231 = 462000.

3. Tail square

1231^23. Tail square split into base and tail 1231=1000+231base square1000^21000000double product2 x 1000 x 231462000tail square231^253361
231^2 = 53361.

231^2 = 53361.

4. Combine parts

1231^24. Combine parts split into base and tail 1231=1000+231base square1000^21000000double product2 x 1000 x 231462000tail square231^2533611000000 + 462000 + 53361 = 1515361
1000000 + 462000 + 53361 = 1515361.

1000000 + 462000 + 53361 = 1515361.

5. Read answer

1231^25. Read answer Read answer 1231^2 = 1515361Read 1231^2 = 1515361.
Read 1231^2 = 1515361.

Read 1231^2 = 1515361.

Practice Level 22

Use the visible move, then type only when the answer is clear.

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