# Scientific Notation Word Problems

Scientific Notation Word Problems
• Page 1
1.
Find the weight of 100 elephants, if each elephant weighs 1.75 × 103 kgs.
 a. 1.75 × 106 kgs b. 1.75 × 104 kgs c. 1.75 × 105 kgs d. 1.75 × 101 kgs

2.
Simplify 1.86 × 102 ÷ 3.1 × 10- 5 and express the result in scientific notation.
 a. 0.6 × 106 b. 6.0 × 106 c. 6.0 × 105 d. 6.0 × 107

3.
Simplify and express the result in scientific notation.
(7.2 × 106) (5.8 × 103)
 a. 4.176 b. 4.176 × 108 c. 4.176 × 109 d. 4.176 × 1010

4.
Simplify and write the result in scientific notation.
1.73 × 10- 3 - 3.62 × 10- 4
 a. 1.368 × 103 b. 13.68 × 10- 3 c. 1.368 × 10- 4 d. 1.368 × 10- 3

5.
Simplify and identify the result in scientific notation.
4.75 × 105 - 2.34 × 105
 a. 2.41 × 105 b. 24.1 × 104 c. 2.41 × 104 d. 241 × 105

6.
Add and identify the result in scientific notation.
1.78 × 102 + 5.02 × 101
 a. 2.282 × 103 b. 228.2 × 102 c. 22.82 × 102 d. 2.282 × 102

7.
Add and identify the result in scientific notation.
1.28 × 106 + 3.92 × 105
 a. 167.2 × 104 b. 1672 × 103 c. 16.72 × 105 d. 1.672 × 106

8.
Objective: Read, write, and represent very large and very small numbers in a variety of forms including exponential.
Simplify the product (24.2 × 1013) (17.5 × 10 - 8) and write the result in scientific notation.
 a. 4.235 × 10- 7 b. 423.5 × 105 c. 4.235 × 107 d. 4.235 × 108

9.
Objective: Read, write, and represent very large and very small numbers in a variety of forms including exponential.
Simplify $\frac{0.88×{10}^{6}}{2.2×{10}^{-6}}$ and write the result in scientific notation.
 a. 4 × 1012 b. 4 × 10- 1 c. 0.4 × 1012 d. 4 × 1011