A customary unit of capacity.1 gallon = 4 quarts

One sixtieth of an hour or 60 seconds.

Changing the order of the addends does not change the sum.

If you add zero to a number, the sum is the same as that number.

The amount left over when one number is divided by another.

To find the nearest ten, hundred, thousand (and so on.)

A way to describe a part of a whole or a part of a group by using equal parts.

a number without fractions; an integer

A way of using words to write a number.

The answer to an addition problem.

The answer to a division problem.

The answer to a multiplication problem.

The answer to a subtraction problem

A common or usual way of writing a number using digits.

A way to write numbers that shows the place value of each digit.

A number that is not exact; a careful guess.

A mathematical sentence that contains an equals sign.

To find the value of a mathematical expression.

Having the same value.

A number that is divided by another number.

The number by which another number is divided.

To separate into equal groups.

A model of multiplication that shows each place value product.

An arrangement of objects in equal rows making multiplication easier.