1.2 Significant Figures, Scientific Notation, Measuring

What is 78.5 rounded to one significant figure?

• 79

• 78.5

• 70

• 80

What is 0.658 rounded to 1 significant figure?

• 0

• 0.66

• 0.7

• 0.658

What is 7.555 rounded to two significant figures?

• 7.6

• 7.5

• 70

• 76

• 7.60

How many significant figures does the following number have?
0.00345

• 6
• 5
• 3
• Ambiguous: 3,4,5, or 6

Round 0.010229 to four significant figures.

• 1022

• 1023

• 0.01023

• 0.01022

Round 52689 to three significant figures.

• 526

• 527

• 52600

• 52700

How many significant figures does the following number have: 0.00204?

• 6

• 4

• 3

• 2

• 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

How many significant figures are there in the number 76400.0?

• 3

• 4

• 5

• 6