In order to subtract two numbers in scientific notation, the steps listed below must be followed.

Step 1: As in addition, change all addends to have the same power of ten.

Step 2: Subtract one digit from the other and keep the power of ten.

Step 3: If necessary, rewrite the decimal with a single number to the left of the decimal point.

Example:

Solution:

Step 1: (3.27 x 10

2.00 x 10

Step 2: (3.27 x 10

Step 3: 3.07 x 10

The answer is 3.07 x 10

Example

Subtract: (6.35 x 10

Solution

Step 1: As in addition, change all addends to have the same power of ten.

(6.35 x 10

(21 x 10

Step 2: Subtract one digit from the other and keep the power of ten.

(6.35 x 10

Step 3: If necessary, rewrite the decimal with a single number to the left of the decimal point.

4.25 x 10

The answer is:4.25 x 10

Example

Subtract: (8.12 x 10

Step 2: Subtract one digit from the other and keep the power of ten.

(8.12 x 10

(6 x 10

Step 3: If necessary, rewrite the decimal with a single number to the left of the decimal point.

(8.12 x 10

Therefore, the answer is 7.52 x 10