Precision
Key notes:
Precision means how exact a measurement is.
When the units are the same, the measurement with more decimal places is more precise.
Learn with an example
➡️ Which measurement is more precise?
- 84 kg
- 51.3 kg
84 kg is measured to the kilogram.
51.3 kg is measured to the tenth of a kilogram.
A tenth of a kilogram is a smaller unit than a kilogram. So, the measurement of 51.3 kg is more precise.
➡️Which measurement is more precise?
- 58.7 days
- 52 days
58.7 days is measured to the tenth of a day.
52 days is measured to the day.
A tenth of a day is a smaller unit than a day. So, the measurement of 58.7 days is more precise.
➡️ Which measurement is more precise?
- 59.28 g
- 4.6 g
59.28 g is measured to the hundredth of a gram.
4.6 g is measured to the tenth of a gram.
A hundredth of a gram is a smaller unit than a tenth of a gram. So, the measurement of 59.28 g is more precise.
Let’s practice! 🖊️
