Combining like terms

Add coefficients of terms with the same variable part. 3x + 5x - 2 becomes 8x - 2.

Standards:7.EE.A.1

Try it: three questions

Real questions from the practice bank. Tap an answer to check it.

Question 1 of 3

Simplify: 7m + 5n – 3m + 2n

Question 2 of 3

Simplify: 5x + 3 − 2x + 8

Question 3 of 3

Simplify: 7m + 3n + 2m - 5n

How this fits in

Combining like terms is one skill in the Pre-Algebra unit. Students read the unit lesson, then earn a bronze, silver, or gold medal on their last 10 answers. Medals never go down. A mastered unit comes back for review after 1, 3, 7, 16, and 35 days so it stays learned.

Writing algebraic expressions from words
Evaluating expressions by substitution
The distributive property
One-step equations
Two-step equations
Inequalities on a number line
Exponents and powers
Percent change, tax, tip, and discount

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