Math_Significant Figures 05

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 measurement?

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 rule for addition and subtraction regarding significant figures?

Back

The result should be reported to the least number of decimal places of any number in the calculation.

Front

What is the rule for multiplication and division regarding significant figures?

Back

The result should be reported to the least number of significant figures of any number in the calculation.

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 100.0?

Back

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

Front

What is scientific notation?

Back

A way of expressing numbers as a product of a coefficient and a power of ten, making it easier to handle very large or very small numbers.

Front

Convert 0.000345 to scientific notation.

Back

3.45 x 10^-4.

Front

How do you express the number 382,500,000 in scientific notation?

Back

3.825 x 10^8.

Front

What is an exact value?

Back

An exact value is a number that has no uncertainty, such as counts of objects or defined quantities.