Question

Taking into account of the significant figures, what is the value of 9.99 m – 0.0099 m?

Options

• 9.98 m

• 9.980 m

• 9.9 m

• 9.9801 m

Answer 1

9.98 m

Explanation:

Subtracting 9.99 from 0.0099 results in 9.9801

However, the number of significant digits after the decimal place in 9.99 is two, as is the number of significant digits after the decimal place in 0.0099. As a result, any subtraction should be regarded up to two significant digits following the decimal, i.e., 9.98.