Master rounding to two decimal places for money, percentages, and everyday calculations
Rounding to the nearest hundredth means keeping exactly two decimal places. The hundredth place is the second digit after the decimal point and represents 1/100 or 0.01.
12.345
The digit after hundredths (5) tells us how to round
If the third decimal is 5 or more (5, 6, 7, 8, 9):
Round UP ⬆️
If the third decimal is less than 5 (0, 1, 2, 3, 4):
Round DOWN ⬇️
Find the second digit after the decimal point. This is the hundredth place.
Example: In 4.567, the hundredth place is 6
The third decimal digit (thousandths place) determines whether to round up or down.
Example: In 4.567, the third decimal is 7
Since 7 is ≥ 5, we round UP. Increase the hundredth digit by 1.
4.56 becomes 4.57
Remove all digits after the second decimal place.
Final answer: 4.57
Original: 3.456
Hundredth place: 5
Third decimal: 6 (≥ 5, so round UP)
Result: 3.46
Original: 7.892
Hundredth place: 9
Third decimal: 2 (< 5, so round DOWN)
Result: 7.89
Original: 2.345
Hundredth place: 4
Third decimal: 5 (= 5, so round UP)
Result: 2.35
| Original Number | Third Decimal | Rounded to Hundredth | Direction |
|---|---|---|---|
| 3.141592 | 1 (< 5) | 3.14 | Down ⬇️ |
| 5.678 | 8 (≥ 5) | 5.68 | Up ⬆️ |
| 12.995 | 5 (≥ 5) | 13.00 | Up ⬆️ |
| 8.234 | 4 (< 5) | 8.23 | Down ⬇️ |
| 0.999 | 9 (≥ 5) | 1.00 | Up ⬆️ |
| 99.994 | 4 (< 5) | 99.99 | Down ⬇️ |
Wrong: For 3.456, looking at the first decimal (4) instead of the third (6)
Right: Always look at the THIRD decimal digit to decide how to round the SECOND
Wrong: Rounding 5.678 to 5.7 (that's rounding to tenths, not hundredths!)
Right: 5.678 → 5.68 (keep TWO decimal places for hundredths)
Wrong: Rounding 2.345 to 2.34 (thinking 5 rounds down)
Right: 2.345 → 2.35 (when the third decimal is exactly 5, always round UP)
Wrong: Writing $13 instead of $13.00 when precision matters
Right: 12.995 → 13.00 (keep the .00 to show hundredth precision in money)
If you're asked to round a whole number to the nearest hundredth, add .00
Example: 42 → 42.00
If there's only one decimal place, add a zero to show hundredth precision
Example: 7.5 → 7.50
Sometimes rounding creates a chain reaction through the digits
Example: 9.996 → 10.00 (the 6 rounds the second 9 to 10, which carries over)
Rounding works the same way with negative numbers
Example: -3.456 → -3.46 (round UP means toward zero for negatives)
The SECOND digit after the decimal point
12.345
Look at the THIRD decimal (thousandths)
12.345
If third decimal is 5, 6, 7, 8, or 9
3.456 → 3.46
If third decimal is 0, 1, 2, 3, or 4
8.234 → 8.23
Money and prices always use hundredths (cents)
$12.99