How Many of These Basic Math Terms Do You Know?

The mathematical term for combining two or more things is addition. The items, or numbers, being added are called the addends.

The sum divided by the count is called the average. Another word for average is mean.

A line that divides a circle in half is called a diameter. A diameter is always a straight line from point to point.

First, outer, inner, last refers to the FOIL method. This is a method for multiplying binomials.

An angle that is less than ninety degrees is an acute angle. A right angle is exactly ninety degrees.

The mathematical term for takeaway is subtraction. This has nothing to do with Chinese food.

The answer produced by subtraction is called the difference. It is the difference between two numbers.

The point furthest from the base of an object is referred to as the apex. The point itself is called the vertex.

The measure of how much matter is in an object is called its mass. Mass is sometimes displayed as the object's weight.

A gross is 144 items. A gross is also twelve dozen.

Deduct is another word for subtract. It is also another word for takeaway.

Multiplication is essentially repeated addition. The answer in multiplication is called the product.

The amount of space inside the boundaries of a two-dimensional object is called the area. To calculate the area of a rectangle, simply multiply length times width.

A line that goes from one corner to another is called a diagonal. A diagonal does not have to be part of a square or a rectangle.

A number that combines a whole number and a fraction is a mixed number. Mixed numbers may also be called mixed fractions.

A hemisphere is half of a sphere. The word "hemi" means half.

Another word for basic math is arithmetic. Arithmetic includes simple calculations, such as addition, subtraction, multiplication and division.

The number used to divide by is called the divisor. In the equation 12 divided by 3, the number three is the divisor.

Splitting things into equal groups is called division. The answer in division is called the quotient.

An object with six sides is called a hexagon. The prefix "hex" refers to the number six.

A baker's dozen is 13 objects. Bakers were once fined for selling items that were underweight, so they added one extra to be sure they met weight requirements.

A shape that looks like a flattened circle is called an ellipse. A circle is actually a type of ellipse.

Something that is part of a whole is a fraction. We can add, subtract, multiply and divide fractions.

Base 2 numbers are binary. Binary numbers use only the digits 0 and 1.

The line opposite the right angle of a right triangle is called the hypotenuse. The hypotenuse is the longest side of the right triangle.

An equal sign must always be present in an equation. The elements to the left of the equal sign must be equivalent to the elements to the right.

A number that is less than zero is negative. A number that is more than zero is positive. Zero is neither negative nor positive.

A number that has tenths, hundredths and thousandths places after a decimal point is called a decimal. Decimals can be added, subtracted, divided, and multiplied.

A number that is the product of multiplying the same number three times is a cubed number. Multiplying 3x3x3 results in the cubed number 27.

An integer is a number without a fraction. Integers can be positive or negative.

An even number can always be divided by two. Even negative numbers can be even.

The distance around the border of a circle is called the circumference. A circumference is like a perimeter.

The floating number that tells us how many times to use a number in multiplication is called an exponent. An exponent may also be called power.

Something that is a part of 100 is a percentage. Percentages can be displayed as decimals.

Fractions have common denominators when the number on the bottom is the same. We can only add and subtract fractions if they have common denominators.