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(D) Add, subtract, multiply, and divide integers fluently
(Y7) Compare, order, add and subtract integers (ACMNA280)
7.NS.1.B Understand p + q as the number located a distance |q| from p, in the positive or negative direction depending on whether q is positive or negative. Show that a number and its opposite have a sum of 0 (are additive inverses). Interpret sums of rational numbers by describing real-world contexts.
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