Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
System of linear equations wikipedia , lookup
Fundamental theorem of algebra wikipedia , lookup
Field (mathematics) wikipedia , lookup
Propositional formula wikipedia , lookup
Elementary algebra wikipedia , lookup
System of polynomial equations wikipedia , lookup
Homological algebra wikipedia , lookup
Homomorphism wikipedia , lookup
Canonical normal form wikipedia , lookup
History of algebra wikipedia , lookup
Laws of Form wikipedia , lookup
Algebra: Variables and Expressions #25 Vocabulary • Algebra is a language of symbols including variables. • A variable is a symbol, usually a letter, used to represent a number. • Algebraic expressions contain at least one variable and at least one operation. • Evaluate is to find the value of an algebraic expression by replacing variables with numbers. Algebraic Expressions 150 + y 35 w + z NOT Algebraic Expressions 85 ÷ 5 10 + 3 5 I DO (foldable) Evaluate z ÷ 5 + 4 for z = 20 1) Substitute numbers for variables (plug in #) 2) Use order of operations to simplify (PEMDAS) 1 2 3 4 WE DO (notes) WE DO (notes) YOU DO (classwork) • ADV Practice pg.453 #1-15 ALL • REG Practice pg.453 #2-14 EVEN https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6thexpressions-and-variables/cc-6th-substitution/v/variables-andexpressions-1 https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6thexpressions-and-variables/cc-6th-substitution/v/evaluatingexpressions-in-two-variables