Addition of Algebraic Expressions (Ages 12-14) Worksheets (Earth Day Themed)

Addition of Algebraic Expressions Worksheet

Looking for the best way to teach students about Addition of Algebraic Expressions?

This premium worksheet bundle contains 10 activities to challenge your students and help them understand Addition of Algebraic Expressions.

Addition of Algebraic Expressions.pptx


Algebraic Expressions are expressions that contain variables, coefficient and constants. These expressions are combination of terms and at least one arithmetic operation such as addition, subtraction, multiplication and division.



3x + 8

Coefficient -The numerical factor of a multiplication expression that contains a variable.
Variable - A symbol for an unknown value.
Constant - A number that cannot change its value


Like Terms - You can only add terms in algebraic expressions if they are “like terms”. Like terms are terms whose variables and exponents are the same.

5x + 3y + 9x + 2 + 2y + 1

  • 5x and 9x are like terms
  • 3y and 2y are like terms
  • 2 and 1 are like terms

Addition of Algebraic Expressions Worksheets

This is a fantastic bundle which includes everything you need to know about Addition of Algebraic Expressions across 15+ in-depth pages. 

Each ready to use worksheet collection includes 10 activities and an answer guide. Not teaching common core standards? Don’t worry! All our worksheets are completely editable so can be tailored for your curriculum and target audience.

Resource Examples

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Worksheet Activities Included

Ages 12-13 (Basic)

  1. Reduce, Reuse, Recycle
  2. Earth Hour
  3. Clean-Up Drive
  4. Let’s Choose Mother Earth
  5. Conserve Water

Ages 13-14 (Advanced)

  1.  Let’s Plant More Trees
  2. Biodegradable Vs. Non-Biodegradable
  3. It’s Earth Day Today!
  4. Garbage In The Bin
  5. Bike More, Drive Less

Why download our worksheets?

Fully editable files

Grades K-8

Common core aligned

Printable math worksheets

Can be tailored for your audience

Answer key included

Powerpoint & PDF Format

Includes topic theory

Fully graded worksheets