Writing Algebraic Expressions

Question 1

What is a VARIABLE?

Answer 1

A symbol, usually a letter, that stands for an unknown number. If a variable occurs more than once in an expression, it refers to the same number each time.
Ex. n, t, b

Question 2

What is a CONSTANT?

Answer 2

A number that does NOT change.
Ex. 4 + s (the 4 is the constant)

Question 3

What is a COEFFICIENT?

Answer 3

A number being multiplied by a variable. Ex. 6 is the coefficient in 6t. The six is a number and a factor. If no number is visible, the assumed coefficient is always 1.
Ex. p = 1p

Question 4

What is an EXPRESSION?

Answer 4

A mathematical phrase with numbers, operation signs (+ - x ÷), and variables. There is NO EQUAL SIGN.

Question 5

What is a TERM?

Answer 5

Each part of an expression that is separated by a + sign or a -sign is called a term.

Question 6

What is the quotient of 20 and t?

Answer 6

20 divided by t or 20/t

Question 7

What is the product of 4 and n?

Answer 7

4n

Question 8

What is h more than 30?

Answer 8

30+h

Question 9

What is 16 subtracted from b?

Answer 9

b-16

Question 10

What is twice the amount of y?

Answer 10

2y

Question 11

What is s equally separated into 4 groups?

Answer 11

s divided by 4 or s/4

Question 12

What is 15 less than b?

Answer 12

b-15