Sig Figs and Sci. Notation

How many sig. fig. are in the number below:
106.00

• 2
• 3
• 4
• 5

How many sig. fig. are in the number below:
0.056

• 1
• 2
• 3
• 4

How many sig. fig. are in the number below:
100.5

• 1
• 2
• 3
• 4

How many sig. fig. are in the number below:
0.678

• 1
• 2
• 3
• 4

How many sig. fig. are in the number below:
705000

• 2
• 3
• 5
• 6

2.12 + 3.5

• 5
• 5.6
• 5.62
• 5.620

25 * 5

• 125

• 120

• 100

• 130

How many sig figs in the number 0.000 000 001 ?

• 1
• 2
• 9
• 10

Express the following in standard notation:

8.025 x 10^-8

• .00000008025

• .000000008025

• 802,500,000,000

• 80,250,000,000

Which of the following is correct scientific notation?

• 20.35 x 10⁴
• .2035 x 10⁴
• 2035 ⁴
• 2.035 x10⁴