Scientific Notation

Math ⇒ Number and Operations

Scientific Notation starts at 7 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Scientific Notation. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.

See sample questions for grade 9

A bacterium is 2.5 × 10^-6 meters long. Write this length in standard form.

A distance is measured as 1.5 × 10⁸ meters. What is this distance in standard form?

A scientist measures the mass of a particle as 2.3 × 10^-15 grams. What is this value in standard form?

Add (3.2 × 10⁵) + (2.8 × 10⁵) and write the answer in scientific notation.

Convert 5,600,000 to scientific notation.

Convert 9.3 × 10^-2 to standard form.

Divide (6 × 10⁷) by (3 × 10²) and write the answer in scientific notation.

Divide (8 × 10⁶) by (2 × 10²) and write the answer in scientific notation.

Explain the steps to convert a number from standard form to scientific notation.

Explain why scientific notation is useful when dealing with very large or very small numbers.

Express 0.000000000007 in scientific notation.

Express 0.00000000045 in scientific notation.

Express 0.00032 in scientific notation.

Express 0.0035 in scientific notation.

Express 3.6 × 10^-5 in standard form.

If a number is written as 4.2 × 10ⁿ and equals 42,000, what is the value of n?

Multiply (2 × 10³) × (3 × 10⁴) and write the answer in scientific notation.

Subtract (5.0 × 10⁶) - (2.5 × 10⁶) and write the answer in scientific notation.

What is the product of (4 × 10²) × (5 × 10³) in scientific notation?

What is the scientific notation of 0.00000052?