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Common Core Standards

Understanding Operations - Add/Subtract

Grade: 7th Grade
Standard:

Math.7.NS.1a or 7.NS.A.1.A

Description:

Describe situations in which opposite quantities combine to make 0. For example, a hydrogen atom has 0 charge because its two constituents are oppositely charged.

Standard:

Math.7.NS.1b or 7.NS.A.1.B

Description:

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.

Standard:

Math.7.NS.1c or 7.NS.A.1.C

Description:

Understand subtraction of rational numbers as adding the additive inverse, pq = 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.

Standard:

Math.7.NS.1d or 7.NS.A.1.D

Description:

Apply properties of operations as strategies to add and subtract rational numbers.

7th Grade Math - Understanding Operations - Add/Subtract Lesson
 
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