APES Math Review

What is the scientific notation of the following number: 1,000,000,000,000

What is the scientific notation of the following number: 5,689,000,000

• .00000000223

• 2230000000

1 meter = 1.094 yards

How many meters are in 5 yards?

• 5.47 meters

• 1.094 meters

• 4.57 meters

How many grams are in a kilogram?

• 1

• 100

• 1000

How many milliliters are in a liter?

• 1

• 100

• 1000

Dimensional Analysis: A farmer started with 5 goats. He traded all of his goats for sheep at an exchange rate of 3 sheep for 1 goat. He then traded sheep for pigs at a rate of 1 sheep for 2 pigs. Next, he traded his pigs for canaries. For every 3 pigs, he got 27 canaries. He then sold all the canaries for $3.25 each. How much money did he make?

• $747.69

• $877.50

• $2632.50

What is the percent change: 234.98 to 324.77

• -0.38%

• 0.38%

• 38%

• -38%

In 2000, the level of ammonia in a river was 63ppm. In 2004, the level was 112ppm. what is the percent increase since 2000?

• 77%

• 0.77%

• -77%

• -0.77%