Technical English Unit 3

add (v)

To put two or more numbers or amounts together to get a total.

subtract (v)

To remove a number from another number.

arithmetic (n)

The part of mathematics that involves the adding and multiplying, etc. of numbers.

addition (n)

The process of adding numbers or amounts together.

multiplication (n)

The process of multiplying numbers.

subtraction (n)

The process of removing one number from another.

calculation (n)

The process of using information you already have and adding, taking away, multiplying, or dividing numbers to judge the number or amount of something.

arithmetic signs

The signs used to indicate basic mathematical operations.

remove (v)

To take something away.

minus (prep)

Reduced by a stated number.

times (prep)

Multiplied by.

multiply (v)

To add a number to itself a particular number of times.

divide (v)

To calculate the number of times that one number fits (exactly) into another.

pocket calculator

A small electronic device that is used for doing calculations.

plus (prep)

Added to.

whole number

Any of the numbers 0, 1, 2, 3, 4, and so on.

key (n)

Any of the set of moving parts that you press with your fingers on a computer keyboard or a pocket calculator to produce letters, numbers, or symbols.

mathematical operation

Any operation like addition, subtraction, multiplication, or division.

brackets (n)

Either of two symbols put around a word, phrase, or number to show that what is between them should be considered as separate from the main part.

result (n)

The answer to a calculation in mathematics.

division (n)

The calculation of how many times one number goes into another.

equal (v)

Used to say that one amount or number is the same as another (Two plus two ____s four.)