Question

4.55 • 10^13 - 1.78 • 10^12

Answer 1

4372 is the correct answer

Answer 2

4.55 ·
`10^(13)` - 1.78 ·
`10^(12)`

First let's make
`10^(13)` the same as
`10^(12)`. We can do this by multiplying 4.55 x 10, and dividing
`10^(13)` by 10.

Now we have:

45.5 ·
`10^(12)` - 1.78 ·
`10^(12)`

Now let's subtract 1.78 from 45.5

45.5 - 1.78 = 43.72

Now we have:

43.72 ·
`10^(12)`

But, since the 43.72 has to be in between 1 and 10, we have to divide 43.72 by 100, and multiply
`10^(12)` by 100.

The answer is:

4.372 ·
`10^(13)`

Hopefully this helps! If you have any more questions or don't understand, feel free to DM me, and I'll get back to you ASAP! :)