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Squares

Level 23 / realistic untimed

4d square D1:4-6 (low)

5 visual steps / 4-digit square split

1. Split thousands

4123^21. Split thousands split into base and tail 4123=4000+123base square4000^216000000double product_tail square_
4123 as 4000 + 123.

4123 as 4000 + 123.

2. Double product

4123^22. Double product split into base and tail 4123=4000+123base square4000^216000000double product2 x 4000 x 123984000tail square_
2 x 4000 x 123 = 984000.

2 x 4000 x 123 = 984000.

3. Tail square

4123^23. Tail square split into base and tail 4123=4000+123base square4000^216000000double product2 x 4000 x 123984000tail square123^215129
123^2 = 15129.

123^2 = 15129.

4. Combine parts

4123^24. Combine parts split into base and tail 4123=4000+123base square4000^216000000double product2 x 4000 x 123984000tail square123^21512916000000 + 984000 + 15129 = 16999129
16000000 + 984000 + 15129 = 16999129.

16000000 + 984000 + 15129 = 16999129.

5. Read answer

4123^25. Read answer Read answer 4123^2 = 16999129Read 4123^2 = 16999129.
Read 4123^2 = 16999129.

Read 4123^2 = 16999129.

Practice Level 23

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

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