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MIDDLE SCHOOL

Mathematics (Grade 8)

Expressions & Equations

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Expressions & Equations: Expression with Powers

Adding in scientific Notation (Different power)

Description

Introduction

Scientific notation helps you write very large or very small numbers in a short form, like 3.2 × 105. You see it in science, like distances in space or sizes of tiny particles, where numbers can be huge or tiny.

Theory

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Transcript

Sam is working on a math problem where he needs to add two numbers written in scientific notation: 2.5 x 109 and 5.3 x 108.

He quickly notices he cannot add them directly because the powers of ten differ.

So, he decides to make the exponents match.

He decides to rewrite the second number to matc...

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