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B. Reason about and solve one-variable equations and inequalities.
5. Understand solving an equation or inequality as a process of answering a question: Which values from a specified set, if any, make the equation or inequality true? Use substitution to determine whether a given number in a specified set makes an equation or inequality true.
Addition & Subtraction: https://www.youtube.com/watch?v=l3XzepN03KQ
Addition & Subtraction: https://www.youtube.com/watch?v=5QzR2ClwmkM
Multiplication & Division: https://www.youtube.com/watch?v=Qyd_v3DGzTM
1. Find the area of right triangles, other triangles, special quadrilaterals, and polygons by composing into rectangles or decomposing into triangles and other shapes; apply these techniques in the context of solving real-world and mathematical problems.
Find the area of square/rectangle/triangle:https://mathantics.com/lesson/area
Find the area of a Parallelogram:https://www.youtube.com/watch?v=uDcBBsn6ie0