Question

Evaluate the expression. Express the result in scientific notation.

(9.08 × 106) – (2.25 × 105)

Answer 1

Explanation:

step 1: do (9.08 x 106) and (2.25 × 105) first

Step 2: bring down the minus sign

Step 3: subtract

Step 4: you should get 726.23 as your final answer

Answer 2

Answer:
`8.855*10^6`

Explanation:

Scientific notation has the form:

`a*10^n`

Where "a" is a number between 1 and 10 but less than 10 and "n" is a integer.

To make the subtraction, the bases must have the same exponent.

Then you can move the decimal point of
`2.25` one place to the left, then:

`(9.08*10^6)-(0.225*10^6)`

Now you can make the subtraction. Then you get:

`8.855*10^6`