MathematicsAddition & SubtractionAges 8–9
Two-Step Equations
Solve two-step word problems using the four operations; represent problems using equations with a letter standing for the unknown quantity
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Check understanding
- Solve a two-step problem that combines addition/subtraction with multiplication/division
- Write an equation using a letter for the unknown (e.g. 3 × n + 5 = 26)
- Assess the reasonableness of the answer using estimation and mental computation
“Can your child write an equation like 'n + 25 = 60' to represent a word problem, and then solve it to find what n equals?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Addition & Subtraction
- Age range
- Ages 8–9
Standards
ccss-math:3.OA.8