Worksheet: Scientific Notation

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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.

  • A0.846×10
  • B846×10
  • C8.46×10
  • D8.46×10

Q2:

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

  • A40×10
  • B4×10
  • C4×10
  • D4×10
  • E40×10

Q3:

Write 782 million in scientific notation.

  • A7.82×10
  • B7.82×10
  • C7.82×10
  • D7.82×10
  • E7.82×10

Q4:

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

  • A2×10
  • B2×10
  • C20×10
  • D2×10
  • E2×10

Q5:

What is 0.00007 written in scientific notation?

  • A7×10
  • B7×10
  • C7×10
  • D70×10
  • E70×10

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?

  • A5×10
  • B4×10
  • C4×10
  • D5×10
  • E5×10

Q7:

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

  • A1×10
  • B1×10
  • C1×10
  • D10×10
  • E10×10

Q8:

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

  • A30×10
  • B3×10
  • C3×10
  • D30×10
  • E3×10

Q9:

Express 25 in scientific notation.

  • A2.5×10
  • B25×10
  • C2.5×10
  • D25×10
  • E2.5×10

Q10:

Express 0.0077×10 in standard form.

  • A0.77×10
  • B0.77×10
  • C7.7×10
  • D7.7×10

Q11:

Express 874,527,893 in scientific notation.

  • A8.74527893×10
  • B8.74527893×10
  • C8.74527893×10
  • D87.4527893×10
  • E0.874527893×10

Q12:

Express 0.00447 in scientific notation.

  • A4.47×10
  • B4.47×10
  • C4.47×10
  • D4.47×10
  • E44.7×10

Q13:

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

  • A1×10 dollars
  • B10×10 dollars
  • C1×10 dollars
  • D10×10 dollars
  • E1×10 dollars

Q14:

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

  • A35×10
  • B3.5×10
  • C35×10
  • D3.5×10
  • E3.5×10

Q15:

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

  • A7×10
  • B70×10
  • C7×10
  • D7×10
  • E7×10

Q16:

Express 248 in scientific notation.

  • A0.248×10
  • B2.48×10
  • C24.8×10
  • D0.0248×10
  • E2.48×10

Q17:

Express 3×300 in standard form.

  • A0.9×10
  • B90×10
  • C9×10
  • D9×10

Q18:

Write 0.000853 in scientific notation.

  • A8.53×10
  • B8.53×10
  • C8.53×10
  • D8.53×10
  • E8.53×10

Q19:

Express 0.146 in scientific notation.

  • A1.46×10
  • B1.46×10
  • C1.46×10
  • D14.6×10
  • E1.46×10

Q20:

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

  • A7×10 m
  • B7×10 m
  • C7×10 m
  • D7×10 m

Q21:

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

  • A3×10/ms
  • B30×10/ms
  • C3×10/ms
  • D3×10/ms
  • E30×10/ms

Q22:

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

  • A10.995×10 bytes
  • B1.0995×10 bytes
  • C1.0995×10 bytes
  • D1.0995×10 bytes
  • E10.995×10 bytes

Q23:

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

  • A9.296×10 mi
  • B9.296×10 mi
  • C9.296×10 mi
  • D92.96×10 mi
  • E92.96×10 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?

  • A8×10
  • B8×10
  • C8×10
  • D7×10
  • E7×10

Q25:

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

  • A$10.6336×10
  • B$1.06336×10
  • C$10.6336×10
  • D$1.06336×10
  • E$1.06336×10

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