Fundamentals of Math

Fundamentals of Mathematics

Practice 1.1 Directions: Circle the word (or words) in the questions below that indicate what operator is being mentioned. Then state what the operation would be if you were to actually answer the question.

1. Martin used to have four vehicles, but that has been reduced by one ever since he gave his oldest car to his grandson to drive. How many cars does Martin have now?

2. Phyllis needed to remember to stop by the bank on her way home from work to get her $10 bill split in half so she could give each of her girls their weekly allowance.

3. According to a recent survey by the U.S. Census Bureau there were almost 9.5 times more female nurses than male nurses. If there were 330,000 male nurses in the U.S. in 2016 how many nurses were female? 4. Brett and Christina decided to finally tackle their weekend project of getting the rotting boards on their back-deck replaced. They already had 10 pieces of lumbar in their garage and Brett brought home 15 more from the hardware store. How many pieces of lumbar do they have in total? 5. Emilio had gone to the gym 3 times this week, but his wife Alexandra went twice as many times as he did. She was determined to win their diet bet. How many times did Alexandra go to the gym?

Answer Key on Page 116

Visually we also need to recognize that each operator has different symbols to indicate what the problem is asking. Like the above phrases, most of them you probably already know, but take a moment to review figure 1.1.2 to refresh yourself.

Figure 1.1.2: Operator Symbols

Addition

Subtraction

Multiplication

Division

× or ( ) or ∗

+

−

÷ or /

1.2 Properties of Real Numbers A quick Google search asking for a definition of Real numbers will yield many results; however, they ultimately all draw the same conclusion.

Real numbers have a value of a continuous quantity. Collectively these values can be represented as a distance along a line.

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