Adding and Subtracting Numbers in Scientific Notation

Front

What is scientific notation?

Back

A way of expressing numbers as a product of a coefficient and a power of 10, e.g., 5.2 x 10^3.

Front

How do you add numbers in scientific notation?

Back

Ensure the exponents are the same, then add the coefficients. Adjust the result if necessary.

Front

How do you subtract numbers in scientific notation?

Back

Ensure the exponents are the same, then subtract the coefficients. Adjust the result if necessary.

Front

What happens to the exponent when you add or subtract a number in scientific notation?

Back

The exponent remains the same if the bases are the same.

Front

What is the first step in adding (2.3 x 10^-2) + (4.1 x 10^-2)?

Back

Ensure both numbers have the same exponent, which they do in this case.

Front

What is the result of (7.2 x 10^-7) - (4.5 x 10^-7)?

Back

2.7 x 10^-7.

Front

If you subtract from your exponent of 10, you move your decimal to the ...

Back

Right.

Front

Which is smaller: 7 x 10^8 or 7.1 x 10^8?

Back

7 x 10^8 is smaller.

Front

What is the result of (5 x 10^8) - (3.4 x 10^8)?

Back

1.6 x 10^8.

Front

How do you convert 0.00056 into scientific notation?

Back

5.6 x 10^-4.