Math Question? Please help! 8th Grade?

Question

I can not figure out how to solve

20 X 10 to the fifth power + 4 X 10 to the sixth power

I know I seem really stupid, but I came in right when class was dismissed, and she just handed me the worksheet. I don't know how to solve it, and I'm not good at math in the first place. Can anyone help? I don't even need the answer, just if someone could tell me how to go about solving it. Thanks very much! =)

I get it now, thanks so much everyone! =)

Robert S-Although I can't see the relevance to my question, I had an orthodontist appointment.

Answer 1

You write out the components, and perform the operations in operator order. Do the powers first, then the multiplications, then the addition.
20 * 10^5 + 4 * 10^6

Of course, there's something interesting you may have noticed right off the bat. 20*10^5 is equal to 2*10^6.

So you have
2*10^6 + 4*10^6
= 6*10^6
= 6,000,000

Answer 2

20 X 10 to the fifth power + 4 X 10 to the sixth power=

you have 2 terms that have different powers, to be able to add them, you need to change one of them to order 6

20 X 10 to the fifth power = 2 X 10 to the power 6

now we can add to get

2 X 10 to the power 6 +4 X 10 to the sixth power =
6 x 10 to the power 6 = 6,000,000

Answer 3

Multiplying by 10 to the fifth power means move the decimal point 5 places to the right, or if the number is a whole number, add five zeros. And 10 to the sixth would add six zeros. So just do that then add them up.

Answer 4

Why were you so late?
You have to move the decimal to coincide.
So change the first number to:
2 X 10 to the sixth power.
Now add to the 4 X 10 to the sixth.

Answer 5

= (20 * 10^5) + (4 * 10^6)
Now, you can proceed from here.

Answer 6

Answer is 16000000040 good luck lol if you want to know go to start then accesories then go to calculator