Curriculum placement
Grade 6. This describes the skill, not a learner estimate.
Solving one-step equations
Solve one-operation equations and check the solution
Problem types
- Solve a one-step equation
- Write and solve a one-step equation
- Read a balance as a one-step equation
- Which story fits the sentence?
Builds on
- Expressions with variables
- Finding a missing number
- Equal equations with the four operations · Earlier idea
An equation says both sides have the same value. Solving a one-step equation finds the unknown value that makes that statement true.
- Missing factors and quotients · Earlier idea
An unknown factor in a fact is a one-step equation. A letter can stand for the unknown number.
- Multi-operation word problems · Useful idea
Writing $x + 6 = 21$ from a story is the same modeling step that comes before solving a one-operation equation with a letter.
Leads to
- Inequalities on a number line
- Solving two-step equations
- Percent increase and decrease · See it applied
Finding the original amount before a percent change is a one-step equation with an unknown factor.
Related skills
- Dependent and independent variables · Shared foundations
- Equivalent expressions · Shared foundations
Open the interactive map to explore lessons and skill connections.