Significant Figures and Precision in Calculations

Which of the following digits is always considered significant?

• Leading zeros

• Zeros between non-zero digits

• Trailing zeros without a decimal

• Any non-zero digit

When a decimal is present, from which side should you start counting significant figures?

• From the left (Pacific side)

• From the right (Atlantic side)

• From the middle

• From the side with more zeros

In multiplication and division, how do you determine the number of significant figures in the result?

• Use the number with the most significant figures

• Use the number with the least significant figures

• Average the significant figures of all numbers

• Add one more significant figure than the least precise number

For addition and subtraction, what is the key factor in determining the precision of the result?

• The number of significant figures

• The number of decimal places

• The total number of digits

• The number of zeros

Why is it important to consider the precision of tools when reporting measurements?

• To reflect the true precision of the measurement

• To avoid using too many significant figures

• To make calculations easier

• To ensure the answer is as long as possible