Sig Figs, Rounding, Calculations, and Scientific Notation

Which of the following numbers has 4 sig figs?

• 0.089

• 5000

• 0.009540

• 7.1001

Calculate and round to the appropriate number of digits:

0.009x58

• 0.522

• 0.5

• 0.05

• 0.52

Write the following number into Scientific Notation:

780 100 000

• 7.8 x 10⁸

• 7.801 x 10⁸

• 7.8 x 10^-8

• 7.80 x 10⁸

Round the following number to 3 decimal places:

9.123456789

• 9.12

• 9.123

• 9.1235

• none of the options

Round the following to 2 sig figs:

8.75

• 8.8

• 8.7

• 8.5

• 8

Round the following to 2 sig figs:

8.85

• 8.8

• 9.0

• 8.9

• 8.85

Write the following number in Scientific Notation:

0.00000456

• 4.56 x 10^-6

• 4.56 x 10⁶

• 4.56 x 10^-5

• 4.56 x 10⁵

Which number is greater: 8.9 x 10⁵ or 1.4 x 10⁹

• 8.9 x 10⁵

• 1.4 x 10⁹

• They are equal

How many total zeros are in the following number when written in its long/standard form?

6.03 x 10⁷

• 7

• 8

• 6

• 1

Which of the following describes a circumstance when a zero IS NOT significant

• When it is at the end of a number, and that number contains a decimal point.

• When it is in between nonzeros

• When it begins the number