Column 1
How many significant figures are in the number 0.00540?
Answer: 3
How many significant figures are in the number 100.020?
Answer: 6
564,321 - 264,321
Answer: 300000.
Round 3.14159 to 3 significant figures.
Answer: 3.14
How many significant figures are in the number 0.002030?
Answer: 4
How many significant figures are in the number 6.02 x 10^23?
Answer: 3
Calculate 2.5 x 3.0 and round to the correct number of significant figures.
Answer: 7.5
How many significant figures are in the number 3.040 × 10⁶?
Answer: 4
Calculate 12.34 + 5.678 and round to the correct number of significant figures.
Answer: 18.02
A student measures the length of a piece of paper to be 29.5 cm and its width to be 21.2 cm. Calculate the area of the paper, rounding to the correct number of significant figures.
Answer: 625 cm²
A chemist measures the mass of an empty beaker to be 25.678 g. After adding a liquid, the mass increases to 32.123 g. Calculate the mass of the liquid, rounding to the correct number of significant figures.
6.445 g