significant figures flashcard

Front

What are significant figures?

Back

Significant figures are the digits in a number that contribute to its precision. This includes all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.

Front

How do you determine the number of significant figures in a number?

Back

Count all non-zero digits, any zeros between them, and trailing zeros in a decimal number. Leading zeros are not counted.

Front

Round 0.010229 to four significant figures.

Back

0.01023

Front

Round 0.3018 to two significant figures.

Back

0.30

Front

How many significant figures are in the number 0.001 g?

Back

1

Front

Which type of number is ALWAYS significant?

Back

Non-zero numbers are always significant.

Front

How many significant figures does the number 32000 have?

Back

2 (if no decimal point is present, trailing zeros are not counted as significant).

Front

What is the significance of trailing zeros in a decimal number?

Back

Trailing zeros in a decimal number are significant because they indicate precision.

Front

How do you round a number to a specific number of significant figures?

Back

Identify the last significant figure you want to keep, look at the next digit to decide whether to round up or down.

Front

What is the rule for zeros in the middle of a number?

Back

Zeros between non-zero digits are always significant.