Numerical and Variable Expressions

Write the following numerical expression as a word phrase.

10 - 2

• 10 divided by 2

• the sum of 10 and 2

• the difference between 10 and 2

• the product of 10 and 2

What is the numerical expression for the word phrase below?

11 minus 9

• 11 x 9

• 11 + 9

• 11x

• 11 - 9

Evaluate the numerical expression

5 x (2 + 1)

• 11

• 15

• 10

• 9

Evaluate 2 + 4 x 2

• 10

• 12

• 8

• 16

Evaluate the numerical expressions. Decide whether they are equivalent.

15 + 5

4 x 5

• The expressions are equivalent

• The expressions are not equivalent

Evaluate the numerical expression

2(10 + 5)

• 25

• 17

• 30

• 10

Classify this expression as either a numerical or an algebraic expression

13 + 5

• algebraic expression

• numerical expression

identify the factors in the following algebraic expression

3(a+2)

• 3a, 2

• 3, (a+2)

• 3, 2a

• 3

Describe the expression using an appropriate term or phrase

(2a +3) x 2

• sum of two terms

• product of two terms

• difference of two terms

• quotient of two terms

how many terms does the following expression have?

(4x + 8y) + 3x + 6(2y + 12)

• 5

• 6

• 4

• 3