Round any number to exactly 2 decimal places (hundredths)
| Original Number | Rounded to 2 Decimals | Explanation |
|---|---|---|
| 3.14159 | 3.14 | Third decimal (1) < 5, rounds down |
| 12.3456 | 12.35 | Third decimal (5) rounds up |
| 0.666 | 0.67 | Third decimal (6) ≥ 5, rounds up |
| 99.999 | 100.00 | Rounds up to next whole number |
| 5.678 | 5.68 | Third decimal (8) ≥ 5, rounds up |
| 2.004 | 2.00 | Third decimal (4) < 5, rounds down |
Rounding to two decimal places means keeping exactly two digits after the decimal point. This is the most common decimal precision used in finance, science, statistics, and everyday calculations.
In the number 3.14159, the second decimal place is "4" (representing hundredths).
The third decimal digit determines rounding direction. In 3.14159, it's "1".
If the third decimal is 5 or greater, round UP. If less than 5, round DOWN. Since 1 < 5, keep it as 3.14.
Drop all digits after the second decimal place. Result: 3.14
Financial Calculations: $45.678 rounds to $45.68 for proper currency format
Interest Rates: 5.678% APR rounds to 5.68% for standard reporting
Test Averages: Score average of 87.678 becomes 87.68
Unit Conversions: 3.14159 meters = 3.14 meters (rounded)
Exchange Rates: 1.3456 EUR/USD rounds to 1.35 for clarity
Trailing zeros: 12.1 rounded to 2 decimals displays as 12.10 in currency
Very small numbers: 0.001 rounds to 0.00 (effectively zero at this precision)
Repeating decimals: 1/3 = 0.333... rounds to 0.33
What are 2 decimal places? The hundredths position, or 1/100th precision
Key digit: Look at the third decimal place (thousandths)
Standard use: Money ($), percentages (%), GPAs, and most statistical data