Scientific Notation

0.281 billion in standard form is 2.81 × 108

2.4 X 10-3

I moved the decimal 3 places. Each time you move the decimal one place, you increase the power of 10 by 3. Since the decimal has to be moved back to the left 3 spots, the 3 is a negative.

1 x 10 E-3 is the same as 1 x 10-3 or 0.0010

28.6 million (28,600,000) miles in standard form = 2.86 × 107 miles.

58,123,000 in standard form is 5.8123 × 107

Because we use the decimal system for counting.

Area of a sphere is (4) pi x r2. Since the earth's radius is about 6400 km then

Area = (4) x pi x (64002) = 515,000,000 = 5.15 x 108 square kilometers

1.6 × 10-8 written in standard notation is 0.000000016

4.018 x 104 = 40,180

0.0071 written in standard form = 7.1 × 10-3

1.2*10-1 ml

0.00002089 in scientific notation is: 2.089000e-5

"milli-" means "a thousandths of a unit". Then, 1 L = 1000 mL. Therefore, 1 L = 1.0 x 10³ mL.

8.026 × 102

or

8.026E2

50.02 written in standard form is 5.002 × 101

216 = 2.16 × 102 or 2.16E2

7.4965 x 10^4

64

In scientific notation, the number is 5.28 x 10³ ft. Shift 3 decimal places to the left.

5.006 x 10^1

3.159 x 102 = 315.9

Move 6 decimal places to the right from the starting decimal position to get:

7.65 x 10-6.

Note that the exponent for base 10 is negative because the leading nonzero digit takes place after the decimal point!

What is the scientific notation of .013

2x2x2x2 = two to the fourth power (2^4).

463 million 342 thousand 705 (463,342,705) in standard form is 4.63342705 × 108