4.5 FORMULAS WITH LETTERS

Learning objectives

At the end of this paragraph you are able to...

...use letter formulas to calculate something in a clever way. 

...determine that there is a multiplication dot in between a number and a letter. 

Explanation videos

Letters in formulas

In this video you will learn how to understand letters in formulas and how you can calculate with them.

The meaning of 6d and -8a

In this video you will learn that there is an invisible multiplication dot in between a number and a letter.

Exercises

Book: NUMBERS AND SPACE

Page 161 & 163: ex 67, 73 (HAVO), 74(VWO)

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