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Standards/Math/North Dakota/7.NS.1

7.NS.1

7.NS The Number system
7.NS.1
7.NS.1.a7.NS.1.b7.NS.1.c7.NS.1.d
7.NS.2
7.NS.3

Apply and extend previous understandings of addition and subtraction to add and subtract rational numbers; represent addition and subtraction on a horizontal or vertical number line diagram.

7.NS.1.aDescribe situations in which opposite quantities combine to make 0.7.NS.1.bUnderstand p + q as the number located a distance |q| from p on a number line, in the direction indicated by the sign of q. 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.7.NS.1.cUnderstand subtraction of rational numbers as adding the additive inverse, p - q = p + (-q). Show that the distance between two rational numbers on the number line is the absolute value of their difference, and apply this principle in real world contexts.7.NS.1.dApply properties of operations as strategies to fluently add and subtract rational numbers.
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