Exam 1: Arithmetic, Calculators, and Problem Solving

Iran is believed to have oil reserves of about $3.6 \times 10 ^ { 11 }$ barrels. A barrel contains 42 gallons of oil. Use scientific notation to express Iran s oil reserves in gallons.

Simplify the numerical expression. Give your answer in reduced form. $\frac { 2 } { 4 } \times \frac { 4 } { 2 }$

Change 3,746 to base eight.

Reduce the fraction $\frac { 6 } { 22 }$ to lowest terms.

Change the number $1101011000 _ { \text {two } }$ to base ten.

Write the following number without using exponents. ( Multiply out.) $6.5 \times 10 ^ { 5 }$

Find the following sum. Give your answer in reduced form. $\frac { 4 } { 7 } + \frac { 2 } { 7 }$

Suppose you have two quarters, three nickels, and two pennies. Use base five to write a numeral to indicate your financial status.

Find the phrase that best describes how the number was rounded. $1,442$ is $1,400$

Change 3,767 to base twelve.

Round the following decimal to the nearest thousandth. $1,584.62479$

Give the place value of the 6 in the following number: 876,357

Change 266 to base twelve.

Write the following number in decimal notation. $10 ^ { - 3 }$

Evaluate the following expression. $12 - 1 + 19$

What is the LCD of fractions with the denominators 6, 4, and 5?

Write the following mixed number as a decimal. $46 \frac { 4 } { 9 }$

Change 179 months to years and months. years and months

Change the mixed number to an improper fraction. $3 \frac { 3 } { 4 }$