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Squares

Level 24 / mastery

4d square D1:4-6 D4:4-6

5 visual steps / 4-digit square split

1. Split thousands

4234^21. Split thousands split into base and tail 4234=4000+234base square4000^216000000double product_tail square_
4234 as 4000 + 234.

4234 as 4000 + 234.

2. Double product

4234^22. Double product split into base and tail 4234=4000+234base square4000^216000000double product2 x 4000 x 2341872000tail square_
2 x 4000 x 234 = 1872000.

2 x 4000 x 234 = 1872000.

3. Tail square

4234^23. Tail square split into base and tail 4234=4000+234base square4000^216000000double product2 x 4000 x 2341872000tail square234^254756
234^2 = 54756.

234^2 = 54756.

4. Combine parts

4234^24. Combine parts split into base and tail 4234=4000+234base square4000^216000000double product2 x 4000 x 2341872000tail square234^25475616000000 + 1872000 + 54756 = 17926756
16000000 + 1872000 + 54756 = 17926756.

16000000 + 1872000 + 54756 = 17926756.

5. Read answer

4234^25. Read answer Read answer 4234^2 = 17926756Read 4234^2 = 17926756; nearby4200^2 = 17640000 checks size.
Read 4234^2 = 17926756; nearby 4200^2 = 17640000 checks size.

Read 4234^2 = 17926756; nearby 4200^2 = 17640000 checks size.

Practice Level 24

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

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