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4th Grade Algebra and Functions:  Standards and Practice Problem(s)	Mathcasts/ ExamView
4AF.1.0 Students use and interpret variables, mathematical symbols, and properties to write and simplify expressions and sentences
4AF.1.1 Use letters, boxes, or other symbols to stand for any number in simple expressions or equations (e.g., demonstrate an understanding and the use of the concept of a variable).	View full-sized   4AF1-1 Ready
4AF.1.2 Interpret and evaluate mathematical expressions that now use parentheses.	4AF1-2 Ready
4AF.1.3 Use parentheses to indicate which operation to perform first when writing expressions containing more than two terms and different operations.	4AF1-3 Ready
4AF.1.4 Use and interpret formulas (e.g., area = length x width or A = lw) to answer questions about quantities and their relationships.	4AF1-4 Ready
4AF.1.5 Understand that an equation such as y = 3 x + 5 is a prescription for determining a second number when a first number is given.	4AF1-5 Ready
4AF.2.0 Students know how to manipulate equations
4AF.2.1 Know and understand that equals added to equals are equal.	4AF2-1 Ready
4AF.2.2 Know and understand that equals multiplied by equals are equal.	4AF2-2 Ready

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Source: www.csun.edu/~vcmth00m/practice.html

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