# Praxis Mathematics Exam 2

This is a timed quiz. You will be given 60 seconds per question. Are you ready?

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#### George buys 6 t-shirts for \$5 each and 4 pairs of jeans for \$8.50 each. He uses the following expression to calculate the total amount of money spent: 6 (5) + 4 (8.5). Which of the following expressions could George also have used?

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George bought four items at both \$5 and \$8.5, but he also bought two more items at \$5.

#### Which of the following units of measurement could no be used to report the length of a pencil?

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Liters are a unit of volume, not length.

#### If Edgar eats 8 2/3 doughnuts in a week and Ellen eats 4 ½ doughnuts in a week, how many more doughnuts will Edgar have eaten?

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Convert the fractions to the lowest common denominator, sixths, before you subtract.

#### 17/68

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The simplest form of this fraction can be found by dividing both sides by 17.

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#### The five starters on a basketball team each scored at least 5 points and no more than 17 points in a basketball game. Which of the following values is a reasonable estimate of the average score of each player?

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It is reasonable to assume that the average score will be close to the middle of the range.

#### 12 x -4x + 8 =

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Remember that unlike terms cannot be combined.

#### If 5x + 7 =8x - 2, then

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Solve the equation for x by subtracting 5x from both sides, adding 2 to both sides, and then dividing both sides by 3.

#### Solve: 3/5 - (-2) =

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Subtracting a negative number is the same as adding it.

#### If the value of x is between 0.00776 and 0.0506, which of the following number could be x?

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When solving this sort of problem, it may help to write the two given numbers so that one is under the other and the decimal points are aligned.

#### If Isaac scored 16 points in the first half of a basketball game and half as many in the second half, how many did he score in the game in all?

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Divide 16 by 2 and add 8 to the dividend.

#### Don gets paid \$9 an hour, but if he works more than 30 hours in a week his rate of pay is increased by ½. How much would Don get paid for a 38-hour work week?

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The problem can be solved with the following expression: 30 (9) + 8 (9 x 1.5)

#### What percent of 38 is 16?

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Divide 16 by 38 and multiply by 100.

#### Solve 3 1/5 x 5 =

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Before multiplying, convert the mixed number to an improper fraction.

#### A shirt that was selling for \$24 has had its price reduced by 15%. How much does it cost now?

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Multiply the original price by 0.15, and then subtract this amount from the original price.

#### What is the volume of rectangular solid that is 8 inches long, 6 inches wide, and 4 inches tall?

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Volume is found by multiplying length, width, and height.