M8- Scientific Notation Test Re-Take

Front

What is scientific notation?

Back

A way to express very large or very small numbers using powers of ten, in the form a x 10^n, where 1 ≤ a < 10 and n is an integer.

Front

How do you convert a large number to scientific notation?

Back

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

Front

How do you convert a small number to scientific notation?

Back

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

Front

Express 125,678,000 in scientific notation.

Back

1.25678 x 10^8

Front

What does the exponent in scientific notation indicate?

Back

It indicates how many places the decimal point has been moved. A positive exponent means a large number, while a negative exponent means a small number.

Front

What is the standard form of 3.97 x 10^-2?

Back

0.0397

Front

What is the standard form of 6.79 x 10^4?

Back

67,900

Front

Which is greater: 9.23 x 10^-2 or 9.23 x 10^-5?

Back

9.23 x 10^-2 is greater.

Front

What does a negative exponent signify in scientific notation?

Back

It signifies that the number is a fraction or a decimal less than one.

Front

Convert 0.000397 to scientific notation.

Back

3.97 x 10^-4