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Applications of the four operations

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Intros
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Lessons
  1. Why do we need Order of Operations?
  2. BEDMAS and Order of Operations (without exponents)
  3. Special case examples: proper order for multiple operations in equations
  4. Review on BEDMAS steps
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Examples
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Lessons
  1. Combining Multiplication and Addition
    Fill in the blanks for the distributive property model.
    1. 2 × (2 + 5) = ___
      (2 × __) + (2 × __) = ___
    2. 4 × (3 + 1) = ___
      (4 × __) + (4 × __) = ___
  2. Applying BEDMAS (without exponents)
    Follow the correct order and solve
    1. (3 × 6) + 10 =
    2. (8 - 3) × 9 =
    3. 1 + 5 × 8 =
    4. 12 ÷ 2 - 6 =
    5. 30 - 4 × 7 + 3 =
    6. 9 × 2 - 20 ÷ 5 =
    7. 36 + 4 ÷ 4 - 8 × 2 =
  3. Word Problem with Order of Operations (BEDMAS) - 1
    Sierra bought 6 bunches of bananas for 3 dollars each and 4 bunches of grapes for 8 dollars each.
    • Write an equation to represent the word problem.
    • Then, draw brackets around the operation(s) that need to be done first.
    • Finally, find the total cost of the fruits Sierra bought.
  4. Word Problem with Order of Operations (BEDMAS) - 2
    Reilly planned a bake sale to fundraise for his local children's hospital. After the bake sale was done, he counted 120 dollars. The ingredients he bought to make his cupcakes cost him 30 dollars.
    His bank wanted to help and said they would match his donation to double his profit.
    • How much profit did Reilly make on his own? (sales - expenses)
    • Write an equation for the total fundraised amount that will be donated.
    • What is the total amount donated to the local children's hospital?