Addition would indicate
increase, a putting together,
combining. Thus, phrases
increased by and added to
addition phrases.
an
or
like
are
Subtraction would indicate a
lessening, diminishing action. Thus,
phrases like decreased by, less,
diminished by are subtraction
phrases.
Multiplication
would
indicate a multiplying action.
Phrases like multiplied by or n
times
are
multiplication
phrases.
Division
would
indicate
partitioning, a quotient, and a
ratio. Phrases such as divided by,
ratio of and quotient of are
common for division.
a. Twice a number increased by four.
2x + 4
b. The difference of five and a number.
5–x
c. Eight diminished by thrice of a number.
8 – 3x
d. Ten added to a number.
x + 10
e. The quotient of a number and two.
x/2
How do we represent unknown numbers?
Why is it necessary to familiarize yourself
with the words or phrases associated with
each arithmetic operation?
1. A number raised by 6
x+6
2. 10 less than a number
x – 10
3. The product of a number and 13
13x
4. The ratio of a number and 5
5.
x/5
Thrice a number added by 1
3x + 1
Translate the following
1. The sum of a number and three
2. Four times a certain number
decreased by one
3. The ratio of a number x and six
increased by two
4. A certain number decreased by two
5. The product of p and q divided by
three
x+3
4x – 1
x/6 + 2
x–2
pq/3
THANK YOU!