Reading and Writing Algebraic Expressions

Four times the difference of a number k and sixteen. 

• 4 x (k - 16)

• 4 x (16 - k)

• (4 x k) - 16

• 4 x (k + 16)

Find the sum of six and a number d, then multiply by ten. 

• 6 + (d x 10)

• (6 + d) x 10

(3a) - 20 

• 20 less than the product of a number a and 3

• 3 times the difference of a number a and 20

• The quotient of 3 and a number a minus 20

Jamal helped his grandmother plant her vegetable garden. He planted 3 rows of zucchini seeds and 4 rows of yellow squash seeds. Each row had s seeds. Which expression represents how many seeds Jamal planted in all?

• 3s + 4s

• 3s + 4

• 4s + 3

• 34s

Kimi has b buttons. Scott has 72 more buttons than Kimi. Type an expression that shows how many buttons Scott has.

Translate this phrase into an algebraic expression.

The quotient of twenty and a number

Use the variable n to represent the unknown number.

• 20/n

• 20-n

• n+20

• n-20

Translate this phrase into an algebraic expression.

2 times the difference of a number and 11

Use the variable t to represent the unknown number.

• 2t - 11

• 2(t - 11)

• 2(t / 11)

• 2 x t - 11

Translate this phrase into an algebraic expression.

80 more than a number

Use the variable B to represent the unknown number.

• 80B

• B-80

• B+80

• B÷80

• the quotient of 8 and a number minus 9

• the product of 8 and a number minus 9

• the quotient of a number and 8 minus 9

• 9 less than the quotient of a number and 8

• 5 plus a number

• the difference of 5 and a number

• 5 more than a number

• the difference of a number and 5