7.NS.1

•  add and subtract rational numbers; represent addition and subtraction on a horizontal or vertical number line.

• describe when opposite quantities make zero 

•  Understand additive inverses

• Find the distance between two rational numbers

• understand that p - q= p + (-q)

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

7.NS.2

• Describe the how multiplying rational numbers (positive and negative fractions and decimals) are used in a real-world context

• Understand that all integers can be divied by all numbers except zero. 

• Convert a rational number to a decimal using long division; know that the decimal form of a rational number terminates in 0s or eventually repeats

7.NS.3

• Solve multi-step and real-life mathematical problems posed with positive and negative rational numbers in any form (whole numbers, fractions, and decimals), using tools strategically

• Convert between fractions and decimals as needed

• assess the reasonableness of answers using mental computation and estimation strategies

• Use variables to represent quantities in a real-world or mathematical problem