quantity that can change and is represented with a letter

Duplicate of Using Variables to Write Expressions Flashcards

1

What is an algebraic expression?

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

2

the sum of 9 and a number x

9 + x
9÷x
9 - x
9x

3

w lunches at $7 each

7 ÷ w
7 + w
7w
7-w

4

5 times a number b

b - 5
5 - b
5b
5 + b

5

a number i added to 50

50 ÷ i
50i
50 + i
50 - i

6

6 times a distance d

d ÷ 6
6 - d
d + 6
6d

7

7 less than a number d

7d
7 - d
7 + d
d - 7

8

a apples divided by 8

8a
8 ÷ a
8 - a
a ÷ 8

9

What is a variable?

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

10

twelve pencils decreased by a number n

12n
n - 12
12 + n
12 - n

11

a number j divided by 3

j ÷ 3
3 x j
3 ÷ j
3j

12

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

False
True

13

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

8 ÷ r
8 + r
r - 8
8r

14

three less than two times an amount x

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

15

three dollars more than the cost of c

c3
c-3
3 + c
c + 3

Duplicate of Using Variables to Write Expressions

Questions 15

Duplicate of Using Variables to Write Expressions

Questions 15