Question

(25 POINTS) How do I structure this properly? I don't understand the way they are wanting me to do this, but I got the right answer which is 0.61 * 10^3... Please answer with the proper answer and step..
`1.1 *10^3-4.9*10^2`

Answer 1

`1.1* 10^3-4.9* 10^2=6.1\cdot 10^2`

Explanation:

Given : Expression
`1.1* 10^3-4.9* 10^2`

To find : Arrange the steps in correct order to perform this subtraction problem ?

Solution :

Step 1 - Write the expression,

`1.1* 10^3-4.9* 10^2`

Step 2 - Multiply and divide by 10,

`1.1* 10^3-4.9* (10)/(10)* 10^2`

Step 3 - Solve the exponent,

`1.1* 10^3-0.49* 10^3`

Step 4 - Taking common term,

`(1.1-0.49)\cdot 10^3`

Step 5 - Subtract the bracket,

`0.61\cdot 10^3`

Step 6 - Multiply and divide by 10 to convert into scientific form,

`(10)/(10)\cdot 0.61\cdot 10^3`

Step 7 - Write in proper form,

`6.1\cdot 10^2`

Therefore,
`1.1* 10^3-4.9* 10^2=6.1\cdot 10^2`

Answer 2

See the attached picture for solution and steps.