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Rounding decimals
Space
Science
History
Long division
100

Audrey has 36.9782 cookies. How can she round to get only whole numbers.

37

100
  • Which gas giant is composed mostly of hydrogen and helium?


  • Answer: Jupiter
100

Q: Which invention by Alexander Graham Bell revolutionized long-distance communication?


A: The telephone

100

Who was the first female aviator to fly solo across the Atlantic Ocean?



Answer:  Amelia Earhart

100

A bus company has 1,176 seats available for a school trip. Each bus has 42 seats. How many buses are needed for the trip?

The company needs 28 buses.

200

Working Backward: If a number rounds to 35.7 when rounded to the nearest tenth, what could be the original number?

(Possible answer: 35.68, 35.71, 35.65)

200
  • Name the four terrestrial (rocky) planets in order from the Sun.


  • Answer: Mercury, Venus, Earth, Mars
200

Q: What type of energy is stored in food, coal, and batteries?


A: Chemical energy

200

. Who was the first President of the United States to live in the White House?

Answer:  John Adams

200

A factory made 4,923 teddy bears and packed them into boxes of 37. How many teddy bears were left over?

  • Answer: There were 2 teddy bears left over. 
300

Which decimal rounds to 8.0 when rounded to the nearest tenth?

(Possible answer: 7.97, 8.02, 7.95)

300
  • Which planet's entire surface is as cold as the South Pole of Earth?
  • Answer: Mars
300

Q: What gas do plants absorb from the atmosphere to perform photosynthesis?


A: Carbon dioxide

300

 Which treaty ended the American Revolutionary War?


 


Answer:  The Treaty of Paris in 1783

 

300

You have a roll of ribbon that is 22.5 feet long. You need to cut it into 5 equal pieces. How long will each piece be?

  • Answer: Each piece of ribbon will be 4.5 feet long.
400

A student rounded 5.555 to the nearest hundredth, and got 5.55. What mistake did they likely make?



  • Answer: They rounded down when they should have rounded up (because the digit in the thousandths place, 5, is 5 or greater) 
400

What is the main reason why Uranus is considered a "gas" giant and not a rocky planet?



  • Answer: It is made up of gases like hydrogen and helium
400

Q: What invention allowed messages to be sent over long distances almost instantly before phones were a thing?


A: The telegraph

400

Who was the first emperor of China?


Answer:  Qin Shi Huang

400

A chef buys a 6-pound block of cheese. She wants to cut it into 0.5-pound portions. How many portions can she get from the block of cheese?

  • Answer: The chef can get 12 portions from the block of cheese. 
500
  • Complex Rounding: What is 20.35784 rounded to the nearest ten-thousandth?


  • Answer: 20.3578 (because the next digit, 4, is less than 5)
500
  • What is the name of the region that separates the inner rocky planets from the outer gas and ice giants?


  • Answer: The Asteroid Belt
500

Q: Which part of the electromagnetic spectrum can the human eye see?


A: Visible light

500

In what year did the United States land on the moon?



Answer: 1969

500

The average temperature in a city over three winter nights was -10°F. If the temperature on the first night was -5°F and the second night was -12°F, what was the temperature on the third night?

  • Answer: The temperature on the third night was -13°F.