Name _______________________
Use the order of operations to evaluate each numerical expression.
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Use what you have learned to answer the following questions as either true or false.
6. Parentheses are a grouping symbol.
7. Exponents can’t be evaluated unless the exponent is equal to three.
8. If there is multiplication and division in a problem you always do the division first.
Evaluate each expression if the given value of .
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Evaluate the following variable expressions if .
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Use what you learned about variables and real-life situations for the next problems. Choose a variable to represent the number and write an algebraic expression for the following phrases.
29. 19 decreased by a number
30. four less than the product of four and a number
31. 30 more than a number
32. A librarian has 4 times as many mystery books as romances. She lends out 12 mysteries. How many mysteries does she have now if she started with 15 romances?
33. In Saturday’s basketball game, Roman scored a fourth of his team's points. If the team scored 48 points total, how many points did Roman score? Write an expression and solve.