Doodles Do Algebra – Lesson 65


Update: This Lesson Is Part of Book 3 of Doodles Do Algebra: “The Basic Math of Algebra” available on Amazon.



Available in the book, “The Basic Math of Algebra, Book 3 of Doodles Do Algebra“


Today we start algebraic division and we start the same way we started algebraic multiplication: by asking how many of something are contained in something else. DoodleOne gives a very good explanation today.


1. 5 times

2. b times (the times bit is simply to drive home the extension of the concept from numbers to unknowns)

3. 3a times

4. bx

5. 5bx

6. 2a (since 4 divided by 2 is 2, and the “a” comes along for the ride since you cannot divide apples by oranges)

7. 2b (since 4 divided by 2 is 2 and a divided by a is 1, which you don’t have to write in the answer)

8. a

9. a^2

10. 3a

11. 5a

That’s it for this week, see you Monday! …and feel free to contact me in the comments with any questions you have.