MCAT Scientific Notation in Addition, Subtraction, Multiplication, and Division

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mcat math without a calculator 4While math is not tested directly on the MCAT, you WILL be faced with a number of science questions where scientific notation calculations are required. Without a Calculator!

Scientific notation on the MCAT is a common source of panic, because unlike simple long multiplication and division, it’s hard to fall back on pen-and-paper method.

This MCAT Math Without A Calculator tutorial video will show you how to tackle scientific notation if it shows up in the form of addition, subtraction, multiplication and division.

Scientific Notation on the MCAT Video

(Watch this video on YouTube or click HERE for the transcript)

In summary: 

Addition of scientific notation: Ensure you have the same exponent power, add the coefficients

Subtraction of scientific notation: Ensure you have the same exponent power, subtract the coefficients

Multiplication of scientific notation: Multiply the coefficients and add the exponents

Division of scientific notation: Divide the coefficients and subtract the exponents

See Previous Video Factor Of 10 Shortcut (cont from vid 2)
See Next Video – Squares and Square Roots


Need additional MCAT style math practice? Click HERE for my FREE MCAT Math Quiz

This is Video #4 in my MCAT Math Without A Calculator tutorial series. Click HERE for the entire series


  1. Leah on 2:00 minutes, are you dividing by 10 to move the decimal to the left to get -4?? and then you justified it for the other side as well dividing by 10 to get the decimal to also move to the left and get 50 right? I got confused there…..

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