## BEATCALC:  Beat the Calculator!

Back to Calculation Tips & Tricks

 From B. Lee Clay

Squaring Numbers

Multiplying Numbers

Dividing Numbers

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### Multiplying a repeating 6's number by 32

1. Choose a repeating 6's number (666, etc.)
2. Multiply it by 32
3. The product is:
- the first two digits are 21
- the next digits are repeating 3's (two fewer than repeating 6's in the original number)
- the last two digits are 12

#### Example:

1. If the first number is 666666:
2. Multiply by 32. The product is
- the first two digits are 21: 21.
- the next digits are repeating 3's (two fewer than repeating 6's in the original number): 3333.
- the last two digits are 12: 12.
3. So 666666 × 32 = 21333312.

See the pattern?

1. If the first number is 666666666:
2. Multiply by 32. The product is
- the first two digits are 21: 21.
- the next digits are repeating 3's (two fewer than repeating 6's in the original number): 3333333.
- the last two digits are 12: 12.
3. So 666666666 × 32 = 21333333312.
Follow the three steps and you will be giving these products quickly and amazing your friends with your calculating ability.