SigFigs, Scientific notation, dimensional analysis, Density and Properties of Matter

Name Period

The number 0.00430 has how many significant figures?

• 1
• 2
• 3
• 4
• 5

The number 9.8020 x 10-5 has how many significant figures?

• 1
• 2
• 3
• 4
• 5

Express 6.3 x 3.25 in proper scientific notation.

• 20.
• 20.475
• 20.48
• 20.5
• 21

Add the following numbers together and express in correct significant figures: 12 + 1.2 + 0.12 + 0.012

• 13.332
• 13.33
• 13.3
• 13
• none of the above

Express the following result using the correct number of significant figures: 0.002843 * 12.80184 / 0.00032

• 113.73635
• 113.736
• 113.74
• 1.1 x 10^3
• 1.1 x 10^2

How many significant figures will be used in the final answer for this calculation: (10.07 + 7.395) / 2.5

• 1
• 2
• 3
• 4
• 5

Round the number 3456.5 to two significant figures:

• 3500
• 3400.0
• 3400
• 3000
• 3000.0

Report the answer using correct significant figures: (1815-1806) x (9.11 x 7.92)

• 600
• 650
• 649
• 649.4
• none of the above

Which number has the most significant zeroes?

• 0.00002510
• 0.02500001
• 250000001
• 2.501 x 10^-7
• 2.5100000