HP Prime Getting Started - Generalities > Settings > Examples > Arithmetic Fundamentals > Ratio Proportion

Click on the embedded link to go to the Info menu page or click on the direct link to go directly to the YouTube site to play a video on Arithmetic Fundamentals Whole Numbers.

Embedded YouTube video file or direct link
HP Prime Guide Arithmetic Fundamentals Ratio Proportion or direct link

Definitions - Percent Problems | Ratio Applications | Proportion Applications

HP Prime Whole Numbers

To see how the HP Prime implements whole numbers calculations click on Basic Math to open the OneNote’s notebook. Select  the Whole Number entry.

Press the [On] key to startup our HP Prime calculator. If in CAS view, press the [Home] key to change to Home view. Use the [Clear] key to erase any previous work.  In the Generalities section we stated that a [Blue] key names require the [Shift] key first and [Orange] key names require the [ALPHA] key first. That pressing the [Shift] or [ALPHA] keys first is understood when a [Blue] or [Orange] name is used.

All keys will appear in [ ]s. Bold Black notation will be used for Black keys, White keys with Black lettering, and Black soft-key in the display. Numbers will be shown in plain text to make reading of their input easier. To add a unit press the [Units] key. If the value being labeled is complex enclose the value in a [( )].

Definitions - Percent Problems by Ratio and Proportion

USING RATIO AND PROPORTION TO SOLVE PERCENT PROBLEMS

Using ratio and proportions to solve percent problems.

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Ratio Application

SETTING UP A RATIO

Calculating a ratio using units.

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FINDING THE RATIO, ANTECEDENT, OR CONSEQUENT

Entry one we findthe ratio. Entry 2 we find the antecedent.

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Proportion Application

TYPES OF VARIATION

Working a direct and inverse variation problem.

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