Significant Figures, Scientific Notation - Grade 7

How many significant figures does the following number have: 0.002040

• 6
• 4
• 3
• 2

How many significant figures does the following number have: 100.00210

• 7
• 5
• 10
• 8

How many significant figures does the following number have: 100.3

• 4
• 3
• 5
• 2

How many significant figures does the following number have: 0.998005

• 9
• 10
• 6
• 5

How many significant figures does 1.90 have?

• 2

• 4

• 6

• 8