How to Add or Subtract Numbers in Standard Form (Part 4/4)

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*** WHAT'S COVERED ***
1. How to add and subtract numbers written in standard form without using a calculator.
2. Converting numbers in standard form to have the same power of 10.
3. Ensuring the final answer is correctly written in standard form.
4. Worked examples including:
* Addition and subtraction.
* Cases where powers are initially the same.
* Cases where powers are initially different (including positive and negative powers).
* Cases where the initial result needs conversion back into standard form.

*** EXAM BOARD INFO ***
KS3 - Not on your course
GCSE Foundation - All on your course
GCSE Higher - All on your course

*** CHAPTERS ***
0:00 Intro & Recap of Standard Form
0:40 Rules for Adding & Subtracting
1:07 Example 1: Same Powers (Addition)
1:31 Summary of Steps
2:08 Example 2: Different Powers (Subtraction)
4:01 Example 3: Different Powers (Addition)
5:35 Example 4: Negative Powers (Subtraction)

*** PLAYLISTS ***










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