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Before and after the hour: Help sheet
Using this drawing you can easily explain before and after the hour with a mnemonic.
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Data Validation in Excel 2013 - Advanced
Advanced techniques in the field of data validation are discussed in this movie
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Data Validation in Excel 2013
In this video you will learn the basic skills in the field of data validation in Excel 2013
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Automatically calculate age
This is a simple application in Excel to calculate age. It can be very useful to know the exact age of each child in your class. Just enter the date of birth. There is an example completed, enter the birth date in the same way.
The age is …
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VVKSO: Flemish Association of Catholic Secondary Education
On the website of the VVKSO you will find all information about the functioning of Catholic Secondary Education. You will find news items, vision and points of view, information about sustainable development, civic sense, health policy, heritage …
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