NC.6.NS.9.a: Understand additive inverses when adding and subtracting integers.

Understand additive inverses when adding and subtracting integers.

NC.6.NS.9.a.1Describe situations in which opposite quantities combine to make 0.NC.6.NS.9.a.2Understand p + q as the number located a distance q from p, in the positive or negative direction depending on the sign of q. Show that a number and its additive inverse create a zero pair.NC.6.NS.9.a.3Understand subtraction of integers as adding the additive inverse, p - q = p + (-q). Show that the distance between two integers on the number line is the absolute value of their difference.NC.6.NS.9.a.4Use models to add and subtract integers from -20 to 20 and describe real-world contexts using sums and differences.
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