An addition equation such as or represents a relationship in which the unknown addend can be determined by subtracting the known addend from the total; the learner applies the inverse relationship between addition and subtraction while preserving equality. Solutions may involve whole numbers, integers, fractions, or decimals and can be checked by substitution. The scope is limited to one-step equations, not multi-step equations or equations requiring more advanced algebraic techniques.
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Detailed Explanation: Solve addition equations
An addition equation shows that an unknown number is being added to a known number. To find the unknown, use the inverse operation: subtraction.
Example:
- Subtract from both sides to keep the equation balanced:
- Simplify:
- Check the answer by substituting for :
Since the statement is true, the solution is
Learn by doing: Solve addition equations
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Practice:
One-Step Equation - Addition - Solve
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Download/Modify Free Grade 6 'Solve addition equations' Worksheet
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This Worksheet Includes:
- One-Step Equation - Addition - Solve
- Linear Equation - One Variable, Two Terms, Simple Display
- Linear Equation - One Variable, Two Terms
- Addition - Missing Value, 3 Digit, 1 Number
- Fraction Addition - Missing Value (Simple) - No Changed Denominator
- Linear Equation - Solve for Box, Two Terms
- Linear Equation - Solve for Box, Two Terms, Add and Subtract
- Linear Equation - Solve for Box, Two Terms, Simple Display
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