## CC Standards

7.NS.1.

a. 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.

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.

c. Understand 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.

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

a. 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.

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.

c. Understand 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.

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