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Squares

Level 27 / mastery

4d square D1:7-9 (mid)

5 visual steps / 4-digit square split

1. Split thousands

7564^21. Split thousands split into base and tail 7564=7000+564base square7000^249000000double product_tail square_
7564 as 7000 + 564.

7564 as 7000 + 564.

2. Double product

7564^22. Double product split into base and tail 7564=7000+564base square7000^249000000double product2 x 7000 x 5647896000tail square_
2 x 7000 x 564 = 7896000.

2 x 7000 x 564 = 7896000.

3. Tail square

7564^23. Tail square split into base and tail 7564=7000+564base square7000^249000000double product2 x 7000 x 5647896000tail square564^2318096
564^2 = 318096.

564^2 = 318096.

4. Combine parts

7564^24. Combine parts split into base and tail 7564=7000+564base square7000^249000000double product2 x 7000 x 5647896000tail square564^231809649000000 + 7896000 + 318096 = 57214096
49000000 + 7896000 + 318096 = 57214096.

49000000 + 7896000 + 318096 = 57214096.

5. Read answer

7564^25. Read answer Read answer 7564^2 = 57214096Read 7564^2 = 57214096; nearby7600^2 = 57760000 checks size.
Read 7564^2 = 57214096; nearby 7600^2 = 57760000 checks size.

Read 7564^2 = 57214096; nearby 7600^2 = 57760000 checks size.

Practice Level 27

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

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