Significant Figures Quiz

When rounding a number to two significant figures, which digit do you consider to decide whether to round up or down?

• The first digit

• The digit immediately after the second significant figure

• The last digit

• The second digit

Why is it necessary to include a zero when rounding to three significant figures?

• To ensure the number has three significant figures

• To make the number smaller

• To make the number larger

• To make the number even

What is the rounded value of a number to four significant figures if the digit after the fourth is greater than 5?

• Add a zero

• Round up

• Round down

• Leave it as is

According to the rules, how many significant figures are in a number with leading zeros?

• Only the zeros count

• All digits count

• All zeros count

• Leading zeros do not count

In scientific notation, which part of the number counts as significant figures?

• The exponent

• The coefficient

• The base

• The entire number