Name: ___________________________
Date: ___________________________
EXTENDED PRACTICE
SCIENTIFIC NOTATION
1. Convert each number to scientific notation using a power of 10 that has a positive exponent.
a. 15,000
b. 120,000
c. 2,750,000
b. 7.5 × 103
c. 5.25 × 108
2. Convert each number to standard form.
a. 2 × 103
3. Convert each number to scientific notation using a power of 10 that has a negative exponent.
a. 0.008
b. 0.64
c. 0.000105
b. 6 × 10−4
c. 5.25 × 10−3
4. Convert each number to standard form.
a. 3.2 × 10−5
5. Approximately 50 million atoms of solid matter could line up in a row to measure 1 cm. Write this number of
atoms in scientific notation.
6. The mass of an electron is approximately the following number of kilograms:
0.0000000000000000000000000000009109
Write this mass in scientific notation. (Hint: Underline place values as you count them.)
7. Add: (8.5 × 103) + (6.5 × 103). Show your work.
8. Subtract: (8 × 104) − (6.75 × 104). Show your work.
9. Multiply: (2 × 1099) × (4 × 101). Show your work.
10. How many times greater than 6 × 1050 is 3 × 1025? Show your work.
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