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Squares

Level 19 / build-up

3d square H:7-9 (any)

5 visual steps / 3-digit square split

1. Split hundreds

739^21. Split hundreds split into base and tail 739=700+39base square700^2490000double product_tail square_
739 as 700 + 39.

739 as 700 + 39.

2. Double product

739^22. Double product split into base and tail 739=700+39base square700^2490000double product2 x 700 x 3954600tail square_
2 x 700 x 39 = 54600.

2 x 700 x 39 = 54600.

3. Tail square

739^23. Tail square split into base and tail 739=700+39base square700^2490000double product2 x 700 x 3954600tail square39^21521
39^2 = 1521.

39^2 = 1521.

4. Combine parts

739^24. Combine parts split into base and tail 739=700+39base square700^2490000double product2 x 700 x 3954600tail square39^21521490000 + 54600 + 1521 = 546121
490000 + 54600 + 1521 = 546121.

490000 + 54600 + 1521 = 546121.

5. Read answer

739^25. Read answer Read answer 739^2 = 546121Read 739^2 = 546121.
Read 739^2 = 546121.

Read 739^2 = 546121.

Practice Level 19

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

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