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How Do You Use the Order of Operations?

Use the order of operations to evaluate:
10 + 3•[(30-10)•2] - ((2+4)/3)•(102)

Summary

  1. Grouping symbols are usually in the form of parentheses or brackets
  2. '102' is our only number with a power
  3. '102' reads as '10 to the power of 2'
  4. '3(40)' is the same as '3 times 40'
  5. '2(100)' is the same as '2 times 100'

Notes

    1. Grouping symbols are usually in the form of parentheses or brackets
    1. Always evaluate the inner-most set of parentheses first
    1. '(30-10)' is the inner-most group
    1. '(2+4)' is the next inner-most group to evaluate
    1. Grouping symbols are usually in the form of parentheses or brackets
    1. '(20)•2' can also be written as '(20)2' or '20•2' or '20 times 2'
    1. '10' is to the power of '2' in this case
    1. '3(40)' is the same as '3 times 40'
    1. '2(100)' is the same as '2 times 100'
    1. The final step is just to add the three remaining terms together