Expressions and equations

Duane Habecker, Tutorified.com, 14.12.2019

Applets to practice expressions and equations.


  • 1. Variable expressions with addition and subtraction
  • 2. Variable expressions with multiplication and division
  • 3. Variable expressions with all four operations
  • 4. Writing an expression for a sequence
  • 5. Tiles around a pool: Writing expressions
  • 6. Algebra Tiles v2
  • 7. Digital Algebra Tiles
  • 8. Algebra Tiles
  • 9. Algebra Tiles
  • 10. Solving Equations with model

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Variable expressions with addition and subtraction

Move the red dot on the left number line. Observe how the blue dot moves on the right number line. What algebraic expression describes the relationship between the two dots?
Variable expressions with addition and subtraction
– Duane Habecker

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