## BEATCALC:  Beat the Calculator!

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 From B. Lee Clay

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### Multiplying a repeating 3's number by 88

1. Choose a repeating 3's number (333, etc.)
2. Multiply it by 88
3. The product is:
- the first two digits are 29
- the next digits are repeating 3's (two fewer than repeating 3's in the original number)
- the last two digits are 04

#### Example:

1. First pick is 3333.
2. Multiply by 88. The product is:
first two digits are 29: 29.
next digits are repeating 3's (two fewer than repeating 3's in the original number): 33.
the last two digits are 04: 04.
3. So 3333 × 88 = 293304.

See the pattern?

1. Next pick is 3333333.
2. Multiply by 88. The product is:
first two digits are 29: 29.
next digits are repeating 3's (two fewer than repeating 3's in the original number): 33333.
the last two digits are 04: 04.
3. So 3333333 × 88 = 293333304.