quantity that can change and is represented with a letter

L6-4 Using Variables to Write Expressions Flashcards

1

6 times a distance d

d + 6
d6
6d
d ÷ 6

2

four times more money than Elliot

e4
4 + e
E ⋅ 4
4e

3

the sum of 9 and a number x

9 + x
9 - x
9x
9÷x

4

7 less than a number d

7 - d
d - 7
7d
7 + d

5

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

r - 8
8 ÷ r
8 + r
8r

6

a number i added to 50

50 + i
50 - i
50i
50 ÷ i

7

w lunches at $7 each

7 + w
7w
7 ÷ w
7-w

8

twelve pencils decreased by a number n

n - 12
12n
12 - n
12 + n

9

a number j divided by 3

3 x j
j ÷ 3
3 ÷ j
3j

10

What is a variable?

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

11

three less than two times an amount x

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

12

5 times a number b

5 - b
b - 5
5 + b
5b

13

Multiplication problems can be written like r5 and 5r.

True
False

14

raise the product of 38 and 7 to the power of the sum of 3 and 5.

(38 ⋅ 7) (3 + 5)
(38 ⋅ 7)(3 ⋅ 5)
(38 / 7)(3 + 5)
(38/7)3 + 5

15

Divide 20 to the 8th power by 3, then add 64

(208)/3 + 64
208 /3 + 64
208 + 64 / 3
(20/3)8 + 64

16

three more than the quotient of a number and 9

x/9 - 3
x/3 + 9
9x + 3
x/9 + 3

17

Subtract 6 from 8. Then Multiply by c

8-6 ⋅ c
(6-8) ⋅ c
(8-6) ⋅ c
6-8 ⋅ c

18

What is an algebraic expression?

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

19

three dollars more than the cost of c

3 + c
c-3
c + 3
c3

20

x apples divided by 8

8 ÷ x
8x
x ÷ 8
8 - x

L6-4 Using Variables to Write Expressions

Questions 20

L6-4 Using Variables to Write Expressions

Questions 20