Writing Expressions
and Equations
you learned:
 the difference between an expression and an equation
you will learn:
 how to translate words into algebraic expressions and equations
 how to translate algebraic expressions and equation into words
Expression
vs.
Equation
Math problem
Words
WORDS & OPERATIONS
plus
sum
more than*
increased by
in all
minus
difference
less than*
less
decreased by
times
product
groups of
each
twice/double
divided
quotient
per
separate
To translate words into an algebraic expression or equation, write the numbers
and operations in the order they appear (working from left to right)
…if you see the word ___________, the numbers switch sides
Guided Practice:
Translate each phrase or sentence into an algebraic expression or equation.
1) A number minus eleven is six.
2) A number less than seven is five.
Independent Practice:
Translate each phrase or sentence into an algebraic expression or equation.
1) The difference of a number and 7
2) Four dollars more than Ralph earned is ten.
3) The product of a number and -8
4) The quotient of a number and 10
5) Three times Jack’s age is 30.
6) 30 less a number is 21.
7) 16 divided by a number equals 4.
8) A number increased by -4 is eleven.
9) -4 decreased by a number
10) The sum of a number and -10 is -16.