Add 3.45 x 10^6 + 1.3 x 10^5

Answer 1

To add these two numbers in scientific notation, we need to have the same exponent.

The first number, 3.45 x 10^6, can be rewritten as 34.5 x 10^5 because moving the decimal point one place to the left decreases the exponent by 1.

Now we can add the two numbers:

34.5 x 10^5 + 1.3 x 10^5 = (34.5 + 1.3) x 10^5 = 35.8 x 10^5

Since 35.8 is not in scientific notation, we need to adjust it:

35.8 x 10^5 can be rewritten as 3.58 x 10^6 by moving the decimal point one place to the right, which increases the exponent by 1.

Therefore, 3.45 x 10^6 + 1.3 x 10^5 = 3.58 x 10^6