When Adding in Scientific Notation?

Here are the rules. When adding or subtracting numbers in scientific notation, the exponents must be the same. The exponents are the same, so add the coefficients. When adding or subtracting numbers in scientific notation, the exponents must be the same.

When adding numbers in scientific notation you should?

To be added or subtracted, two numbers in scientific notation must be manipulated so that their bases have the same exponent--this will ensure that corresponding digits in their coefficients have the same place value.

What rules should you follow when adding and subtracting check all that apply?

What rules should you follow when adding and subtracting? Check all that apply. The exponents need to be the same so the leading numbers can be added or subtracted. The result has the same number of decimal places as the least precise number.