Lesson 1-1|Numerical and Algebraic Expressions

Is 10d + 55 an algebraic expression?

• Yes because it has 55

• No because it has a coefficient

• Yes because it has a variable

• Yes because it expresses a problem

12 + 5 is

• a numerical expression

• an algebraic expression

2a + 2c + 5

how many terms? what's the constant?

• 2 terms, the constant is 2c

• 1 term, the constant is 5

• 3 terms, the constant is 5

• 3 terms, the constant is 2a

Name the coefficients in the expression:
2x - 5 + 6c + m

• 2, 6, 1
• 2, 5, 6
• 2, 5
• 2, 6

Name the constants in the expression:
3x + 8 + 6n + 4 + f

• 3, 6
• 3, 6, 1
• 8, 4
• 8, 3, 6

How many terms are in the expression below:
3x - 6 + 4b + 5 + 7 - 2x

• five
• eight
• six
• nine

Evaluate the expression for m = 10.

11m

• 110

• 21

• 100

• 1110

If z = 31, what is 30 − z ?

• 1

• -1

• 2

• 3

A ______ has fixed value.

• Variable

• Constant

Who am I?

My value is not fixed and changes.

• Constant

• Variable