Worksheet: Scientific Notation

In this worksheet, we will practice expressing numbers in scientific notation and converting numbers between their standard and scientific forms.

Q1:

Express 8,460,000,000 in the standard form 𝑎×10.

  • A 0 . 8 4 6 × 1 0
  • B 8 4 6 × 1 0
  • C 8 . 4 6 × 1 0
  • D 8 . 4 6 × 1 0

Q2:

What is 40,000,000 written in scientific notation?

  • A 4 0 × 1 0
  • B 4 × 1 0
  • C 4 × 1 0
  • D 4 × 1 0
  • E 4 0 × 1 0

Q3:

Write 782 million in scientific notation.

  • A 7 . 8 2 × 1 0
  • B 7 . 8 2 × 1 0
  • C 7 . 8 2 × 1 0
  • D 7 . 8 2 × 1 0
  • E 7 . 8 2 × 1 0

Q4:

There are approximately 200 million cows in India. Express this number in scientific notation.

  • A 2 × 1 0
  • B 2 × 1 0
  • C 2 0 × 1 0
  • D 2 × 1 0
  • E 2 × 1 0

Q5:

What is 0.00007 written in scientific notation?

  • A 7 × 1 0
  • B 7 × 1 0
  • C 7 × 1 0
  • D 7 0 × 1 0
  • E 7 0 × 1 0

Q6:

The ship Titanic that sank in the Atlantic had a mass of about 47,450,000 kg. Which of the following could be used as an estimate for this value?

  • A 5 × 1 0
  • B 4 × 1 0
  • C 4 × 1 0
  • D 5 × 1 0
  • E 5 × 1 0

Q7:

An estimate for the number of eggs a queen termite can produce in a lifetime is 100000000. Write this number in scientific notation.

  • A 1 × 1 0
  • B 1 × 1 0
  • C 1 × 1 0
  • D 1 0 × 1 0
  • E 1 0 × 1 0

Q8:

An estimate for the height of Mount Everest is 30,000 feet. Write this number in scientific notation.

  • A 3 0 × 1 0
  • B 3 × 1 0
  • C 3 × 1 0
  • D 3 0 × 1 0
  • E 3 × 1 0

Q9:

Express 25 in scientific notation.

  • A 2 . 5 × 1 0
  • B 2 5 × 1 0
  • C 2 . 5 × 1 0
  • D 2 5 × 1 0
  • E 2 . 5 × 1 0

Q10:

Express 0.0077×10 in standard form.

  • A 0 . 7 7 × 1 0
  • B 0 . 7 7 × 1 0
  • C 7 . 7 × 1 0
  • D 7 . 7 × 1 0

Q11:

Express 874,527,893 in scientific notation.

  • A 8 . 7 4 5 2 7 8 9 3 × 1 0
  • B 8 . 7 4 5 2 7 8 9 3 × 1 0
  • C 8 . 7 4 5 2 7 8 9 3 × 1 0
  • D 8 7 . 4 5 2 7 8 9 3 × 1 0
  • E 0 . 8 7 4 5 2 7 8 9 3 × 1 0

Q12:

Express 0.00447 in scientific notation.

  • A 4 . 4 7 × 1 0
  • B 4 . 4 7 × 1 0
  • C 4 . 4 7 × 1 0
  • D 4 . 4 7 × 1 0
  • E 4 4 . 7 × 1 0

Q13:

In America, about 10 million dollars is spent every day on potato chips. Express this amount in scientific notation.

  • A 1 × 1 0 dollars
  • B 1 0 × 1 0 dollars
  • C 1 × 1 0 dollars
  • D 1 0 × 1 0 dollars
  • E 1 × 1 0 dollars

Q14:

Approximately 35,000 tons of pasta are consumed in America every year. Express this number in scientific notation.

  • A 3 5 × 1 0
  • B 3 . 5 × 1 0
  • C 3 5 × 1 0
  • D 3 . 5 × 1 0
  • E 3 . 5 × 1 0

Q15:

In the US, around 7,000 tons of worn out currency are shredded every year. Express this number in scientific notation.

  • A 7 × 1 0
  • B 7 0 × 1 0
  • C 7 × 1 0
  • D 7 × 1 0
  • E 7 × 1 0

Q16:

Express 248 in scientific notation.

  • A 0 . 2 4 8 × 1 0
  • B 2 . 4 8 × 1 0
  • C 2 4 . 8 × 1 0
  • D 0 . 0 2 4 8 × 1 0
  • E 2 . 4 8 × 1 0

Q17:

Express 3×300 in standard form.

  • A 0 . 9 × 1 0
  • B 9 0 × 1 0
  • C 9 × 1 0
  • D 9 × 1 0

Q18:

Write 0.000853 in scientific notation.

  • A 8 . 5 3 × 1 0
  • B 8 . 5 3 × 1 0
  • C 8 . 5 3 × 1 0
  • D 8 . 5 3 × 1 0
  • E 8 . 5 3 × 1 0

Q19:

Express 0.146 in scientific notation.

  • A 1 . 4 6 × 1 0
  • B 1 . 4 6 × 1 0
  • C 1 . 4 6 × 1 0
  • D 1 4 . 6 × 1 0
  • E 1 . 4 6 × 1 0

Q20:

The length of an object is 7 mm. Express this length in meters, giving your answer in scientific form.

  • A 7 × 1 0 m
  • B 7 × 1 0 m
  • C 7 × 1 0 m
  • D 7 × 1 0 m

Q21:

The speed of light is approximately 300,000,000 m/s. Write this speed in scientific notation.

  • A 3 × 1 0 / m s
  • B 3 0 × 1 0 / m s
  • C 3 × 1 0 / m s
  • D 3 × 1 0 / m s
  • E 3 0 × 1 0 / m s

Q22:

A terabyte is made of approximately 1099500000000 bytes. Rewrite in scientific notation.

  • A 1 0 . 9 9 5 × 1 0 bytes
  • B 1 . 0 9 9 5 × 1 0 bytes
  • C 1 . 0 9 9 5 × 1 0 bytes
  • D 1 . 0 9 9 5 × 1 0 bytes
  • E 1 0 . 9 9 5 × 1 0 bytes

Q23:

The average distance between Earth and the sun is 92,960,000 mi. Rewrite this distance using scientific notation.

  • A 9 . 2 9 6 × 1 0 mi
  • B 9 . 2 9 6 × 1 0 mi
  • C 9 . 2 9 6 × 1 0 mi
  • D 9 2 . 9 6 × 1 0 mi
  • E 9 2 . 9 6 × 1 0 mi

Q24:

The population of the world is about 7,575,430,316. Which of the following could be used as an estimate for this value?

  • A 8 × 1 0
  • B 8 × 1 0
  • C 8 × 1 0
  • D 7 × 1 0
  • E 7 × 1 0

Q25:

The value of the services sector of the US economy in the first quarter of 2012 was $10,633.6 billion. Rewrite this amount in scientific notation.

  • A $ 1 0 . 6 3 3 6 × 1 0
  • B $ 1 . 0 6 3 3 6 × 1 0
  • C $ 1 0 . 6 3 3 6 × 1 0
  • D $ 1 . 0 6 3 3 6 × 1 0
  • E $ 1 . 0 6 3 3 6 × 1 0

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