Scientific Notation: Practice Quiz

Ten questions pulled at random. Regenerate any time for a fresh set.

1. 1. Which number is NOT in proper scientific notation?

   12.4 × 10³1.0 × 10⁵3.7 × 10⁰9.99 × 10⁻²

2. 2. 0.0035 × 10⁴ in proper form is:

   3.5 × 10⁷3.5 × 10⁻³35 × 10⁰3.5 × 10¹

3. 3. (2.0 × 10³)² =

   4.0 × 10⁹4.0 × 10⁵4.0 × 10⁶2.0 × 10⁶

4. 4. Moving the decimal one place to the LEFT means the exponent:

   Decreases by 1DoublesIncreases by 1Stays the same

5. 5. (9.0 × 10⁸) ÷ (3.0 × 10²) =

   6.0 × 10⁶3.0 × 10¹⁰3.0 × 10⁴3.0 × 10⁶

6. 6. Which is the largest number?

   1.0 × 10⁻²9.9 × 10⁻⁴8.0 × 10⁻³5.0 × 10⁻³

7. 7. Written out, 5.6 × 10⁻² is:

   0.0565600.00560.56

8. 8. Write 45,000 in scientific notation.

   4.5 × 10⁴45 × 10³4.5 × 10³0.45 × 10⁵

9. 9. 7.4 × 10⁰ equals:

   7400.747.4

10. 10. (3.0 × 10⁴)(2.0 × 10³) =

    5.0 × 10⁷6.0 × 10⁶6.0 × 10⁷6.0 × 10¹²