3 ms·

So that’s why Johnny can’t subtract. There’s a corresponding problem with + and - . For a + b = c we should of course write the equivalent a = b - c . If 2 + 3

by jonsen 6y ago

So that’s why Johnny can’t subtract. There’s a corresponding problem with + and - . For a + b = c we should of course write the equivalent a = b - c . If 2 + 3 = 5 then 2 = 3 - 5 .

deleted 6y ago
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