What's 3.2x10^5+3.8x10^5 in scientific notation

To add numbers in scientific notation, we need to ensure that the exponents are the same. In this case, we have:

3.2x10^5 + 3.8x10^5

To add these numbers, we add the coefficients (3.2 + 3.8) and keep the same exponent:

7.0x10^5

Therefore, the sum of 3.2x10^5 + 3.8x10^5 in scientific notation is 7.0x10^5.

To add these numbers in scientific notation, you'll need to make sure that they have the same exponent.

Given: 3.2x10^5 + 3.8x10^5

Step 1: Adjust the exponents
In order to add these numbers, we need to make sure they have the same exponent.

Since both numbers have exponents of 5, no adjustment is needed.

Step 2: Add the coefficients
Add the coefficients of the numbers, which are 3.2 and 3.8.

3.2 + 3.8 = 7

Step 3: Write the sum in scientific notation
Combine the coefficient with the common exponent of 10^5.

So, the sum of 3.2x10^5 + 3.8x10^5 in scientific notation is 7x10^5.

same order of magnitude, so 3.2 + 3.8 (two sig figures)=7.0

answer: 7.0x10^5 or shorthand 7.0e5