Lesson Worksheet: Scientific Notation Mathematics • 8th Grade

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

Q1:

Which of the following numbers is not in scientific notation?

  • A9.1×10
  • B−0.57×10
  • C5×10
  • D−7×10

Q2:

Express 874,527,893 in scientific notation.

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

Q3:

Express 0.00447 in scientific notation.

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

Q4:

Express 3.06707×10 in normal form.

Q5:

Given that 4,160,000=4.16×10, find the value of 𝑛.

Q6:

Which of the following is the smallest?

  • A0.4×10
  • B0.7×10
  • C51.2×10
  • D51.2×10

Q7:

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

Q8:

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

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

Q9:

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

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

Q10:

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

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

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