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BEGINNERMental Math

Quick Percentage Calculations

Master the art of calculating percentages mentally using simple breakdowns

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Break percentages into easy parts that you can calculate mentally.

How It Works

0

10% โ†’ Divide by 10 (move decimal left)

1

5% โ†’ Half of 10%

2

15% โ†’ 10% + 5%

3

20% โ†’ 10% ร— 2

4

25% โ†’ Divide by 4

5

33.33% โ†’ Divide by 3

6

50% โ†’ Divide by 2

7

1% โ†’ Divide by 100

Examples

๐Ÿ“ 15% of 240: 10%=24, 5%=12, Total=36

๐Ÿ“ 25% of 80: 80รท4=20

Pro Tips

๐Ÿ’ก For any percentage, break it into 10%, 5%, and 1% parts!

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