Sig Figs

How many significant figures does the following number have?
0.00345

• 6
• 5
• 3
• Ambiguous: 3,4,5, or 6

• 5
• 3
• Ambiguous: 3 or 5

• 7

How many significant figures does the following number have: 100.00210

• 7
• 8
• 10
• Ambiguous: 7 or 8

Solve and give your answer with the correct number of significant figures
24.28 + 12.5

• 3.687 x 10¹
• 36.8
• 37
• 3.70x10¹

Solve and give your answer with the correct number of significant figures
1421-34

• 1.39x10³
• 1387
• 1390
• 1400

Solve and give your answer with the correct number of significant figures
129.6/3

• 43.0
• 43
•  4x10¹
• 40

Round 1235 to 2 significant figures.

• 12
• 1200
• 1200.
• 1200.00

Round the following value to one significant figure...

8291

• 8000

• 9000

• 7000

• 8300

Round 509.96 to 4 significant figures

• 509.9

• 509.0

• 510.0

• 510

What is 7.555 rounded to two significant figures?

• 7.6

• 7.5

• 70

• 76

• 7.60