Mathematics
Algebra
Procedural
11–12 yrs
Collecting Like Terms
合并同类项
Description
Simplify algebraic expressions by collecting like terms — combine terms with the same variable and power (e.g., 3a + 2b + 5a = 8a + 2b) while maintaining equivalence
Mastery Evidence
- Identify like terms in an algebraic expression
- Combine like terms involving positive and negative coefficients
- Simplify expressions involving multiple variables and constant terms
Assessment Prompt
If your child sees an expression like "5a + 3b + 2a," can they simplify it by collecting the like terms to get "7a + 3b"?
Prerequisites 1
Expressions & Equations Vocabulary
合并同类项需要了解项、系数和同类项的含义
