Subtract 4.66 x 10^-5 - 7.34 x 10^-7 (1 point)

1 answer

To subtract these numbers, we need to have the same exponent for the 10.

Let's write both numbers with the same exponent (we'll use -5):

4.66 x 10^-5 - 7.34 x 10^-7

= 4.66 x 10^-5 - 0.0734 x 10^-5 (we move the decimal point two places to the left in 7.34)

Now that the exponents are the same, we can subtract the numbers in front:

= (4.66 - 0.0734) x 10^-5

= 4.5866 x 10^-5

Therefore, 4.66 x 10^-5 - 7.34 x 10^-7 = 4.5866 x 10^-5