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→Knows the inverse relationship of multiplication and division
== Knows the inverse relationship of multiplication and division ==
== Knows the inverse relationship of multiplication and division ==
<gallery>
<gallery>
File:Sliderule-inverse.png|Napier's bones
File:Sliderule-inverse.png|Slide ruler
File:Napier-bones.png|Napier's bones
File:TurtleArt-inverse.png|Turtle Art project
File:TurtleArt-inverse.png|Turtle Art project
</gallery>
</gallery>