Grade 7 - Number
Standard 7.N.6 - Find the missing number in addition and subtraction equations with integers.
Included Skills: Algebra, Mixed Equations
Demonstrate an understanding of addition and subtraction of integers, concretely, pictorially and symbolically. • Explain, using concrete materials such as integer tiles and diagrams, that the sum of opposite integers is zero. • Illustrate, using a number line, the results of adding or subtracting negative and positive integers; e.g., a move in one direction followed by an equivalent move in the opposite direction results in no net change in position. • Add two given integers, using concrete materials or pictorial representations, and record the process symbolically. • Subtract two given integers, using concrete materials or pictorial representations, and record the process symbolically. • Solve a given problem involving the addition and subtraction of integers.