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Squares

Level 10 / foundation

2d square mastery (digits 4-9)

5 visual steps / 2-digit square split

1. Split tens

86^21. Split tens split into base and tail 86=80+6base square80^26400double product_tail square_
86 as 80 + 6.

86 as 80 + 6.

2. Double product

86^22. Double product split into base and tail 86=80+6base square80^26400double product2 x 80 x 6960tail square_
2 x 80 x 6 = 960.

2 x 80 x 6 = 960.

3. Tail square

86^23. Tail square split into base and tail 86=80+6base square80^26400double product2 x 80 x 6960tail square6^236
6^2 = 36.

6^2 = 36.

4. Combine parts

86^24. Combine parts split into base and tail 86=80+6base square80^26400double product2 x 80 x 6960tail square6^2366400 + 960 + 36 = 7396
6400 + 960 + 36 = 7396.

6400 + 960 + 36 = 7396.

5. Read answer

86^25. Read answer Read answer 86^2 = 7396Read 86^2 = 7396.
Read 86^2 = 7396.

Read 86^2 = 7396.

Practice Level 10

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

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