5th Grade · Number & Operations in Base Ten
Decimal
5.NBT.A.3a
Definition
A number with a decimal point that shows parts of a whole, such as tenths and hundredths.
Examples
- 2.75 is a decimal made of 2 wholes and 75 hundredths.
- 0.4 is a decimal equal to 4 tenths.
Key rule
The decimal point separates whole numbers from parts of a whole.
Memory hook
The dot splits whole from part.