How does simple addition and reduction work graphically?
Addition and reduction by themselves are simple procedures made to numbers that have the same unit. It is easy to see that 2+3=5 or that 6-4=2. But what does it mean graphically? Graphically, the numbers should be considered as an axis – for example a horizontal axis going from left to right, where the approximate midpoint is 0, the numbers on the line left of 0 are negative and the numbers right of 0 are positive. (-9)—(-8)—(-7)—(-6)—(-5)—(-4)—(-3)—(-2)—(-1)—-(0)—-(1)—-(2)—-(3)—-(4)—-(5)—-(6)—-(7)—-(8)—-(9) An addition such as 2+3 would be handled like so: First the first number, 2, is considered. It is positive, so it is found right from 0. The second number indicates the steps we have to make to get to the result. The sign, plus (+), indicates that it’s an addition, so whatever number is added, the direction of the steps will be to the right. Now the number to be added is 3, making the steps like this: from 2 to 3 (first step), then 4 (second step
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