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Scientific notation is like shorthand for writing very large or very small numbers. Instead of writing the number in decimal form, the number is shortened to a number multiplied by a power of ten.
What does the phrase "Please excuse my dear Aunt Sally" have to do with math? It's a mnemonic that helps students remember PEMDAS — an acronym that outlines the order of operations rules in a math problem. Keep reading to learn the meaning of PEMDAS, what it stands for and why it's important when solving problems correctly.