Significant Digits Practice

How many significant digits will be in the sum of 5.89 + 15.821?

• 2

• 3

• 4

• 5

Scientific notation for 0.000000345 μg is _

• 34.5 x 10^-8

• 34.5 x 10⁸

• 3.45 x 10^-7

• 3.45 x 10⁷

Round the following number to 2 significant digits: 345,230,000,000,000 km (include commas and unit in your response)

(a)  

Round the following number to 2 significant digits: 0.000490 mg (include units with your response)

(a)  

Round the following number to 2 significant digits: 79.90 g (include units with your response)

(a)  

Write the following number in scientific notation to 3 significant digits: 567,295,000,000,000

Mathematical Equivalence

ON

Write the following number in scientific notation to 3 significant digits: 0.000890

Mathematical Equivalence

ON

Write the following number in scientific notation to 3 significant digits: 2.3908

Mathematical Equivalence

ON

Drag and drop the following measurements to their correct number of significant digits.​ (a)   ​ ​ (b)   ​ (c)   ​ (d)   ​ (e)  

• 1
• 3
• 4
• 5
• 1.700 cm
• 307,080 g
• 0.756400 L
• 7.85 x 10^5 mL
• 1000000 in
• 6

Carry out the following operation and express in the appropriate number of significant figures: 12.0550 mL + 9.05 mL

(a)