About Decimal Arithmetic
Decimal numbers include a fractional part separated by a point (e.g. 3.14). The same four operations apply — the key is aligning the decimal point correctly.
Result = Number1 [op] Number2, rounded to chosen decimal places
Examples
| Expression | Result |
|---|---|
| 3.75 + 1.25 | 5.00 |
| 10.5 − 3.3 | 7.2 |
| 2.5 × 4.0 | 10.0 |
| 9.9 ÷ 3.3 | 3.0 |