Did you know?
Did you know that the equations being shown in the model are examples of basic addition and subtraction with negative numbers? In mathematics, negative numbers are represented with a minus sign (-) beside them. Adding a negative number is equivalent to subtracting its positive counterpart. Subtraction can also be represented as adding the opposite. So, in the given equations, 2 plus a negative 5 equals 7, 2 plus a negative 7 equals negative 5, and 2 minus 7 equals negative 5. These operations help us understand the relationship between positive and negative numbers.
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