Question

How to multiply and divide and add and subtract scientific notations?

Answer 1

Multiplying in scientific notation

To multiply two numbers written in scientific notation, you work out the coefficients and the exponents separately. Multiply the coefficients. Add the exponents of the powers of 10.Join the new coefficient to the new power of 10 to get the answer.

Dividing in scientific notation

To divide two numbers written in scientific notation, you also work out the coefficients and the exponents separately, but now it involves division and subtraction. Divide the coefficients. Subtract the exponent in the denominator from the exponent in the numerator. Remember that the denominator is the bottom number and the numerator is the top number. Join the new coefficient to the new power of 10.