Mathematics·Addition & Subtraction·procedural
Two-Step Equations
Solve two-step word problems using the four operations; represent problems using equations with a letter standing for the unknown quantity
Suggested ages 8–9
Learning journey
Your child is mastering more complex addition and subtraction — working with larger numbers up to four digits, solving multi-step word problems, and using formal written methods alongside mental strategies.
Evidence of 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
Assessment prompt
Can Two-Step Equations write an equation like 'n + 25 = 60' to represent a word problem, and then solve it to find what n equals?
Standards alignment
3.OA.8US · ccss-math
Solve two-step word problems using the four operations
Common Core State Standards for Mathematics · 3