| vocabulary | definitions |
| Tenth | One of ten equal parts |
| Hundredth | One of one hundred equal parts |
| Fraction | A number that names part of a whole |
| Number line | A line with equally spaced marks named by numbers |
| Decimal | A number with one or more digits to the right of a decimal point |
| digit | Any one of ten symbols used to write numbers |
| round | Replace a number with a number that tells about how many or how much |
| Decimal point | The mark in a decimal number that separates the ones and the tenths |
| regrouping | Exchanging amounts of equal value when renaming a number |
| Equivalent decimals | Two or more decimals that name the same amount |
