Astronomy
Earth is about 93,000,000 miles from the Sun. Write this number in expanded form and determine the value of the digit 9.
90,000,000 + 3,000,000
Value of 9 = 90,000,000
An electron moves at 15 cm/s. If its speed is quadrupled, how fast is it moving.
60 cm/s
Look at a butterfly. If you draw a line down the center and both sides match perfectly, what geometric property does the butterfly have?
Symmetry
An engineer is designing a solar panel. If the panel is a square with side lengths of 6 feet, what is its area?
36 square feet.
A line plot shows the sizes of different computer chips: 1/8, 2/8, 1/8, 4/8, each in cm. What is the total length of all the chips combined?
8/8 cm or 1 cm
A telescope discovers 4,500 new stars every year. If this continues for 10 years, how many stars will it have discovered total?
45,000 Stars
A scientist has 2 liters of a chemical. How many milliliters (mL) is that?
2,000 mL
A honeybee travels 3/8 of a mile to a flower and then 3/12 of a mile to another. How many total miles did it travel?
5/8 of a mile
A bridge truss uses a triangle where all three angles are less than 90°. Is this an acute, obtuse, or right triangle?
Acute triangle
A computer "pattern" follows this rule: Add 15. If the first number is 30, what are the next two numbers?
45 and 60
Mars has a circumference of 6,779 km. John is walking along the surface of Mars. How long would it take him to walk 3 times around the planet.
Estimate 6,779×3 using rounding to the nearest hundred, then compute the exact answer.
6,800 x 3 = 20,400
6,779 x 3 = 20,337
A solution is 15,000/20,000 water. Write an equivalent fraction for this amount with the lowest possible denominator.
3/4
An oak tree originally standing at 7 inches grows 12 inches every year. How many feet tall will it be after 9 years?
9 feet 7 inches tall
An engineer designs a pipeline that is 4 1/2 kilometers long. The pipeline will be cut into sections that are each 375 meters long. How many full sections can be made?
12 Sections
A coder is organizing files into folders. She has 112 files and puts 8 files in each folder. How many folders does she use?
14 Folders
A Martian day is about 24 hours and 40 minutes. If a rover operates for 3 Martian days, how many total minutes has it operated?
4440 Minutes
An atom has 200 electrons in a model.
Ten more models are purchased, how many electrons are there in total?
2,200 Electrons
A forest covers 360 acres and scientists study 5/6 of it.
Then they divide that area into plots of 12 acres each. How many plots are there?
25 Plots
You are designing a building. You can only use cubes with side length of 2 m. How many cubes are needed to build a building of 104 m^3
13 Cubes
A server can handle 4,000 requests per minute. If there are 5 servers, how many requests can they handle in 30 seconds?
10,000 Requests
A rover collects 3/8 kilograms of rock each day for 12 days.
How many grams total were collected? Express as a mixed number.
A chemist divides 18,060 mL of solution into 6 equal containers.
How much in each?
3,010 mL
A whale weighs 120,000 pounds. It's brother is double its weight and its mom weighs triple its weight. How much does the family weigh in tons? (1 ton = 2,000 lbs)
360 Tons
A construction site is made up of two parts, a triangle and a square. The square has a length of 12 meters. The triangular part has a length of 5 meters and a height of 6 meters. What is the area of the site?
159 square meters
A data center processes 36,000 user requests per hour. The center runs for 10 hours. After that, engineers discover that 2/6 of all requests were duplicates and should not have been counted. How many correct responses were processed.
240,000 Requests