Slide 1Holt Algebra 1 1-2 Adding and Subtracting Real Numbers 1-2 Adding and Subtracting Real Numbers Holt Algebra 1 Warm Up Warm Up Lesson Presentation Lesson Presentation…

Slide 1ALGEBRA TILES Slide 2 INTRODUCTION Algebra tiles can be used to model algebraic expressions and operations with algebraic expressions. Algebra tiles can be used to…

Operations with integers can be modeled using two-colored counters. Positive +1 Negative -1 The following collections of counters have a value of +5. Build a different collection…

Developed by Carmen Davis, Hoa Ly, Ryan Ratajski & Johari Sykes Camden City School District Understanding Numerical Operations in Preschool Standard 4.2 Children demonstrate…

Warm-Up - 6 + - 4 = 5 X -3 = -4 X -4 = 6 + (-2) = -10 â (- 2) = Operations with integers can be modeled using two-colored counters. Positive +1 Negative -1 The following…

Operations with integers can be modeled using two-colored counters. Positive +1 Negative -1 The following collections of counters have a value of +5. Build a different collection…