GA Milestones Math Grade 3 key terms

The value a digit has because of its position in a numeral, such as the five hundreds in five hundred seven.

A way to write a whole number as the sum of its place values, keeping zeros and omitted places in mind.

Exchanging an equal value between place-value units, such as one hundred for ten tens, to carry out an operation accurately.

A whole-number input to a multiplication product, distinguished from a multiple when describing equal groups or exact divisibility.

The result of multiplying quantities, interpreted through the equal groups, array or measurement relationship in the actual problem.

The result of division, whose meaning may be the number of groups or the size of each group in a context.

The amount left after forming whole groups, interpreted according to whether the problem asks for full groups, leftovers or enough containers.

A statement that two expressions have the same value, not an instruction saying that an answer must always follow the equals sign.

The top number in a fraction identifying a count of the equal-sized fractional units represented in that specific construction.

The bottom number indicating how a unit whole is partitioned into equal fractional parts, not automatically the value of the fraction.

A fraction with numerator one that represents one of the equal parts into which the same whole has been divided.

Different fraction names for the same amount or number-line point, requiring a consistent unit whole when models are compared.

A whole number together with a fractional amount, whose value must be preserved when regrouping or changing its representation.

A judgment of which quantities are greater, smaller or equal, justified using comparable units and the same relevant whole.

The distance around a figure, found by combining its boundary lengths and reported in linear units rather than square units.

The amount of flat space covered by a figure, measured using square units rather than simply adding the side lengths.

An agreed amount used to measure a quantity, which must match the type of measurement and be kept consistent in calculations.

The amount represented by each symbol or marked interval on a data display, checked before counting or comparing categories.

A closed plane figure with four straight sides, classified through its attributes rather than how it is rotated on the page.

The number of observations in a category or at a value, represented by counts or marks according to the display’s stated scale.