Scientific notation

Write very large and very small numbers as a coefficient times a power of ten, and compute with them.

Standards:8.EE.A.38.EE.A.4

Try it: three questions

Real questions from the practice bank. Tap an answer to check it.

Question 1 of 3

The distance from Earth to the Sun is about 1.5 × 10⁸ km. Write this number in standard form.

Question 2 of 3

The distance from Earth to the Sun is approximately 1.5 × 10⁸ km. Express this distance in standard form (regular numbers).

Question 3 of 3

The distance from Earth to the Sun is approximately 1.5 × 10⁸ km. Write this number in standard form.

How this fits in

Scientific notation is one skill in the Algebra Foundations unit. Students read the unit lesson, then earn a bronze, silver, or gold medal on their last 10 answers. Medals never go down. A mastered unit comes back for review after 1, 3, 7, 16, and 35 days so it stays learned.

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