quantity that can change and is represented with a letter

Using Variables to Write Expressions Flashcards

1

w lunches at $7 each

7w
7 ÷ w
7-w
7 + w

2

a apples divided by 8

8 - a
a ÷ 8
8a
8 ÷ a

3

What is the coefficient of 3h + b- 15

h
15
3
b

4

a number i added to 50

50 - i
50 + i
50 ÷ i
50i

5

7 less than a number d

7 + d
7 - d
d - 7
7d

6

twelve pencils decreased by a number n

12 + n
12 - n
12n
n - 12

7

5 times a number b

5b
5 + b
5 - b
b - 5

8

a number j divided by 3

3 ÷ j
3j
j ÷ 3
3 x j

9

6 times a distance d

6 - d
d + 6
d ÷ 6
6d

10

three less than two times an amount x

3x -2
2x - 3
32 -x
3 - 2 - x

11

What is an algebraic expression?

mathematical phrase that has one variable and one operation
an answer to a division problem
an answer to an addition problem
a quantity that is represented with a letter

12

the sum of 9 and a number x

9 + x
9 - x
9÷x
9x

13

Multiplication problems can be written like 5 x r and 5r.

False
True

14

What is a variable?

quantity that can change and is represented with a letter
the answer to a subtraction problem
a mathematical phrase that uses operations and letters
the answer to a multiplication problem

15

three dollars more than the cost of c

c-3
3 + c
c + 3
c3

16

Which expression shows a quantity of rolls, r, added to 8 bagels?

r - 8
8r
8 + r
8 ÷ r

17

How many terms does the following expression have? 3y + 2x- w²

1
2
3

Using Variables to Write Expressions

Questions 17

Using Variables to Write Expressions

Questions 17