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More details about STEM LAB ARITHMETIC KIT - 3D Mechanical Puzzle UGEARS

Use the Addiator to add and subtract numbers. Use a stylus to enter a number value, then enter a second number. The result of the desired mathematical operation is then shown. The top row of entering the second number is for addition, while the bottom row is for subtraction. In addition to this, the Addiator can be used to multiply and divide numbers.The multiplication tables from 1 to 12 will never again be deemed as ‘boring’ with the Ugears Mechanical Multiplier!  The principle of hinge-lever mechanisms is perfectly exemplified with this wonder of a tool. Simply move two sliders to various numbers and see the result in the window above. If you want to square a number (to multiply a number by itself), the move the right slider to the utmost right position and fix it at the “X²” symbol.

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