Significant Digit and Calculation

How many significant figures does the following number have: 0.002040

• 6
• 4
• 3
• 2

How many significant figures does the following number have: 0.998005

• 9
• 10
• 6
• 5

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: 56.040

• 2
• 3
• 4
• 5

Round 1009 to three sig figs

• 100
• 101
• 1010
• 1000

Round 1047.78 to three sig figs

• 104
• 105
• 1050
• 1050.00

Round 0.010229 to four sig figs

• 1022
• 1023
• 0.01023
• 0.01022

What is the measurement 1042 Liters rounded to 2 significant figures? 

• 1040 L
• 1.1 x 10³ L
• 1.0 x 10³ L
• 1050 L

What is 98.907 rounded to 1 significant figure?

• 98.9
• 90
• 100
• 98.91