Operations with Scientific Notation

Front

What is scientific notation?

Back

A way of expressing numbers as a product of a number between 1 and 10 and a power of 10.

Front

How do you convert a number to scientific notation?

Back

Move the decimal point in the number until only one non-zero digit remains to the left. Count the number of places moved; this becomes the exponent of 10.

Front

What is the scientific notation for 450,000?

Back

4.5 x 10^5

Front

How do you compare numbers in scientific notation?

Back

Compare the exponents first. The number with the larger exponent is greater. If exponents are equal, compare the coefficients.

Front

What is the smallest number among 1.3 x 10^20, 2.9 x 10^21, 9.5 x 10^32, and 8.4 x 10^19?

Back

8.4 x 10^19

Front

How do you multiply numbers in scientific notation?

Back

Multiply the coefficients and add the exponents.

Front

How do you divide numbers in scientific notation?

Back

Divide the coefficients and subtract the exponents.

Front

What is the result of (5 x 10^12) ÷ (2 x 10^6)?

Back

2.5 x 10^6

Front

How do you add numbers in scientific notation?

Back

Make sure the exponents are the same, then add the coefficients.

Front

What is the difference in sales between 8 x 10^4 Elsa dolls and 2 x 10^4 Anna dolls?

Back

6.0 x 10^4 more dolls.