Scientific Notation and Significant Figures Practice

Front

What is scientific notation?

Back

A way of expressing numbers as a product of a coefficient and a power of 10, e.g., 1.23 x 10^3.

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 only if there is a decimal point.

Front

Calculate 5.50 cm + 5.50 cm and give your answer with the appropriate number of significant figures.

Back

11.00 cm

Front

When your exponent is negative in scientific notation, which direction do you move the decimal?

Back

To the left.

Front

What is the standard form of 1.245 x 10^3?

Back

1245.

Front

Calculate 1.23 m x 0.89 m and give your answer with the appropriate number of significant figures.

Back

1.1 m².

Front

Calculate 345.009 g - 23.009 g and give your answer with the appropriate number of significant figures.

Back

322.000 g.

Front

What are significant figures?

Back

Digits in a number that contribute to its precision, including all non-zero digits, zeros between them, and trailing zeros in a decimal.

Front

How do you round a number to three significant figures?

Back

Look at the fourth digit; if it's 5 or more, round up the third digit.

Front

What is the purpose of using scientific notation?

Back

To simplify the representation of very large or very small numbers.