Subtraction often feels straightforward until you face a problem like 7 minus 9. Many people immediately say, "You can’t do that," because it seems impossible to take away more than you have. But this common belief limits how we understand subtraction. The truth is, 7 minus 9 equals –2, and this result makes perfect sense when we rethink subtraction beyond just "taking away." This post explores why 7 − 9 is not only possible but also a useful way to understand numbers on a br

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