Environmental
The Amazon River is about 6.4 x 103 kilometers long, and the Nile River is about 6.7 x 103 kilometers long. What is the combined length of the Amazon and Nile Rivers? Express your answer in scientific notation.
What is addition, 1.31 x 104?
A spaceship travels at a speed of 1.5 x 105 kilometers per minute. If the spaceship travels 4.32 x 103 minutes, how many kilometers did it travel?
What is multiplication, 6.48 x 108?
Two hamsters are racing on their exercise wheels. Hamster A runs a distance of 3.4 × 10² meters, while Hamster B runs a distance of 2.6 × 10² meters. What is the total distance both hamsters run combined?
What is addition, 6 x 102?
What operation is described with phrases such as “together, combined, total, sum, increase?”
What is addition?
Solve the expression (5.3 x 106)(4.2 x 104)
2.226 x 1011
The size of the Sahara desert is about 3.629 x 106 square miles and the Arabian desert is about 9 x 105 square miles. How many times larger is the Saraha desert than the Arabian Desert?
What is division, 4.032?
The distance from Earth to Mars is about 7.8 x 107 kilometers when they are closest. The distance from Earth to Neptune is about 4.5 x 109 kilometers. What is the total distance if a spacecraft travels from Earth to Mars and then from Mars to Neptune? Express your answer in scientific notation.
What is addition, 4.578 x 109?
A jet plane is cruising at a speed of 4.5 × 10³ kilometers per hour. Due to turbulence, the pilot reduces the speed to 3.2 × 10² kilometers per hour. By how much did the jet plane's speed decrease?
What is subtraction, 4.18 x 103?
What operation is described with phrases such as “difference, between, change, how much more?”
What is subtraction?
Solve (9 x 108)/(2 x 102)
4.5 x 106
The size of two oceans in square km is shown below. Pacific Ocean: 1.796 x 108, Arctic Ocean: 1.323 x 107.
How much larger is the Arctic Ocean than the Pacific Ocean?
What is subtraction, 1.66367 x 108?
The radius of Neptune is about 4.0 x 107 meters. The radius of Earth is approximately 6.4 x 106. How many times greater is the radius of Neptune compared to the radius of Earth?
What is division, 6.25?
A race car travels a total distance of 7.2 × 10⁵ meters during a race. If the race car maintains an average speed of 1.8 × 10² meters per second, how many seconds does it take for the racecar to complete the race?
What is division, 4 x 103?
What operation is described with the phrase “how many ______ goes into ________?”
Solve (3.66 x 10-5)/(2.0 x 10-3)
1.83 x 10-2
A large ocean cleanup project is working to remove plastic from the Pacific Ocean. They have collected a total of 4.8 × 10⁶ kilograms of plastic waste. If the cleanup team is able to remove 1.2 × 10³ kilograms of plastic each day, how many days will it take to remove all the plastic they've collected?
What is division, 4 x 103?
A satellite orbits Earth at an altitude of approximately 4.5 x 105 meters. The Hubble Space Telescope orbits at an altitude of 5.0 x 106. How much higher is the Hubble Space Telescope's orbit compared to the satellite's orbit?
What is subtraction, 4.55 x 106?
A mountain biker covers a distance of 2.5 × 10² meters per minute during a race. If the race lasts for 1.2 × 10³ minutes, how far will the mountain biker travel by the end of the race?
What is multiplication, 3 x 105?
What operation is described with the phrase “how many times bigger is…?”
What is division?
(4.5 x 1028)/(3 x 1015)
1.5 x 1013
A conservation group is working to replant trees in a deforested area. They can plant trees at a rate of 3 × 10³ square kilometers per year. If the group continues planting at this rate, how many square kilometers will they have replanted after 6 × 10² years?
What is division, 1.8 x 106?
The volume of Jupiter is 1.43 x 1015 km3. The volume of Mars is 1.63 x 1011 km3. How many times would Mars fit into Jupiter?
What is division, 8.773 x 103?
Daily Double!! A marathon runner completes a race with a total distance of 4.2 × 10³ meters. If the runner maintains an average speed of 1.4 × 10² meters per minute for the first half of the race and increases their speed to 2.1 × 10² meters per minute for the second half, how many total minutes does it take the runner to complete the race?
What is division, 25 minutes?
What operation is described using rates such as “meters per second”?
What is multiplication?
(0.9 x 104)(1.14 x 107)
1.026 x 1011