Algebra Terms

Question 1

Variable

Answer 1

The letters used in algebra and they stand for numbers

e.g. x, a, n, m, t…

Question 2

Pronumeral

Answer 2

The letters used in algebra and they stand for numbers

e.g. x, a, n, m, t…

Question 3

Term

Answer 3

Either a single number or variable, or numbers and variables multiplied together. Terms are separated by + or − signs, or sometimes by divide.

e.g. 4(5), 4a²b,-5n²a²

Question 4

Constant

Answer 4

A known number on its own, or sometimes a letter such as a, b or c to stand for a fixed number. The letter has to have a known number.

Example: in “x + 5 = 9”, 5 and 9 are constants.

Question 5

Co-efficient

Answer 5

A number used to multiply a variable.
Example: 6z means 6 times z, and “z” is a variable, so 6 is a coefficient.

Variables with no number have a coefficient of 1.
Example: x is really 1x.

Sometimes a letter stands in for the number.
Example: In ax2 + bx + c, “x” is a variable, and “a” and “b” are coefficients.

Question 6

Expression

Answer 6

Numbers, symbols and operators (such as + and ×) grouped together that show the value of something without an equals sign.

Examples:
* 2 + 3 is an expression
* 3 − x/2 is also an expression

Note: an expression does not have an equals sign. In fact none of these: = ≠ < > ≤ ≥

Question 7

Equation

Answer 7

An equation says that two things are equal. It will have an equals sign “=” like this:

x + 2 = 6
That equations says:

what is on the left (x + 2) is equal to what is on the right (6)

So an equation is a statement “this equals that”