MYP-Sig Figures & Scientific Notation w/Calculations-SY25

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 scientific notation?

Back

Scientific notation is a way of expressing numbers as a product of a number between 1 and 10 and a power of ten, e.g., 6.02 x 10².

Front

How do you multiply numbers in scientific notation?

Back

Multiply the coefficients and add the exponents. For example, (2 x 10^3) * (3 x 10^2) = 6 x 10^(3+2) = 6 x 10^5.

Front

How do you divide numbers in scientific notation?

Back

Divide the coefficients and subtract the exponents. For example, (6 x 10^5) ÷ (2 x 10^2) = 3 x 10^(5-2) = 3 x 10^3.

Front

What is the result of 0.58 x 1.838 x 7.021 with significant figures?

Back

The result is 7.5, rounded to two significant figures.

Front

How do you add or subtract numbers with significant figures?

Back

The result should be rounded to the least number of decimal places of any number in the operation.

Front

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

Back

The answer is 1.1 m², rounded to two significant figures.

Front

Calculate 923 g ÷ 20312 cm³ and give the answer with the correct number of significant figures.

Back

The answer is 0.0454 g/cm³, rounded to three significant figures.

Front

What is the result of 1050 km - 1.54 km with significant figures?

Back

The result is 1048 km, rounded to the nearest whole number.