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Squares

Level 8 / realistic untimed

2d square (large units)

5 visual steps / 2-digit square split

1. Split tens

78^21. Split tens split into base and tail 78=70+8base square70^24900double product_tail square_
78 as 70 + 8.

78 as 70 + 8.

2. Double product

78^22. Double product split into base and tail 78=70+8base square70^24900double product2 x 70 x 81120tail square_
2 x 70 x 8 = 1120.

2 x 70 x 8 = 1120.

3. Tail square

78^23. Tail square split into base and tail 78=70+8base square70^24900double product2 x 70 x 81120tail square8^264
8^2 = 64.

8^2 = 64.

4. Combine parts

78^24. Combine parts split into base and tail 78=70+8base square70^24900double product2 x 70 x 81120tail square8^2644900 + 1120 + 64 = 6084
4900 + 1120 + 64 = 6084.

4900 + 1120 + 64 = 6084.

5. Read answer

78^25. Read answer Read answer 78^2 = 6084Read 78^2 = 6084.
Read 78^2 = 6084.

Read 78^2 = 6084.

Practice Level 8

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

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