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Addition and Subtracting Monomials

MATH QUIZ

ADDING & SUBTRACTING MONOMIALS

Learn what monomials and like terms are, then take the quiz!

What is a Monomial?

A math expression with only one term. It can be a number, a variable, or a number multiplied by variable(s).

Examples: 5x, -3y², 8

What are Like Terms?

Monomials that have the exact same variables raised to the exact same powers. Only the coefficients can be different!

Examples: 4x and 9x

Are these Like Terms?
3x² and 7x²LIKE TERMS
5ab and -2abLIKE TERMS
4x² and 4xNOT LIKE TERMS
3a and 3bNOT LIKE TERMS

Golden Rule: You can ONLY add or subtract LIKE TERMS. If they are not like terms, just leave them as they are!

How to Add / Subtract

Add: 4x + 5x → (4 + 5)x = 9x

Subtract: 8y² - 3y² → (8 - 3)y² = 5y²

Mix: 3a + 2b - a → (3 - 1)a + 2b = 2a + 2b

Tip: Just combine the numbers (coefficients) and keep the variable part the same!

Quiz Time!

Read carefully and pick the best answer. You got this!

PART 1Multiple Choice
1

Which of the following is a monomial?

2

Which pair are LIKE TERMS?

3

Simplify: 9k + 4k

4

Simplify: 12p² - 5p²

5

What happens when you try to add 3x + 5y?

PART 2Multiple Choice
6

Simplify: 8x + 7x

7

Simplify: 15a² - 9a²

8

Simplify: 6m - 2m + m

9

Simplify: -4y² + 10y² - y²

10

Simplify: 3k + 5k - 9k + 2k

Answer all questions first before submitting!
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Made for students who want to master Monomials

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