Significant figures

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

What is the significance of significant figures in calculations?

Back

Significant figures indicate the precision of measurements and calculations, ensuring that results reflect the accuracy of the data used.

Front

How many significant figures are in the number 0.00456?

Back

3 significant figures (4, 5, and 6). Leading zeros are not counted.

Front

How many significant figures are in the number 1000?

Back

1 significant figure (the '1'). Without a decimal point, trailing zeros are not counted.

Front

How many significant figures are in the number 1000.0?

Back

5 significant figures (1, 0, 0, 0, and the trailing zero after the decimal point).

Front

What is the result of 129.6 divided by 3, expressed with the correct number of significant figures?

Back

43.0 (the result should have 3 significant figures, based on the number with the least significant figures in the operation).

Front

How do you round the number 98.907 to 1 significant figure?

Back

100 (rounded to the nearest hundred).

Front

How many significant figures does the number 1.2500 x 10^3 have?

Back

5 significant figures (the digits 1, 2, 5, and the two trailing zeros are counted).

Front

How many significant figures does the number 0.00204 have?

Back

3 significant figures (the digits 2, 0, and 4 are counted).