ch 1 math vocab 4th grade

A list of all the possible ways to do something, ordered so that you know all possibilities have been listed.

A mathematical phrase with operators, letters, and/or numbers. Examples: 12 + 9 5 × n 24 ÷ 3 43 – x

An approximate answer; to find an answer that is close to the exact answer.

The sum of 0 and a number is the same as that number.Example: 7 + 0 = 7

Changing the order of addends does not change the sum. Example: 5 + 6 = 6 + 5

Changing the grouping of the addends does not change the sum. Example: (4 + 5) + 2 = 4 + (5 + 2)

The result of adding.

To perform mathematical operations with numbers.

A list of all the possible ways to do something, ordered so that you know all possibilities have been listed.

A number that is added to another number or numbers.

A mathematical expression with an addition sign. Example: 10 + 14

To rename ten in a place for one in the next greater place, or one in a place for ten in the next lesser place, + or -