9.9 Sec 1.2 Review 7th Grade Algebra

9.9 Sec 1.2 Review 7th Grade Algebra

by Laura Plasschaert

​PEMDAS

​Let's review the order of operations!

• ​Parenthesis or grouping symbols

• ​Exponents

• ​Multiplication OR division, whichever comes first from left to right

• ​Addition OR subtraction, whichever comes first from left to right

​Let's practice

• Start with parenthesis

  • ​7 x 6 + 11

• ​Mulitiplication

  • ​42 + 11

• ​Add

  • ​53

​Substitution

​Remember, you need to remember to insert the correct value for the variable in the equation.

​Let's practice

• ​First, rewrite the problem.

• ​Then, replace the d value with 2

• ​The new problem should be 2+9(2)

• ​Solve following PEMDAS

• ​2+18

• ​20