Grade 2 Introduction: Math Practice Problems
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WASHINGTON GRADE 2 MATHEMATICS STANDARDS
Students refine their understanding of the base ten number system and use place value concepts of ones, tens, and hundreds to understand number relationships. They demonstrate this understanding by writing and modeling numbers in a variety of ways.
Operations, Measurement, Algebra
Students apply their understanding of number relationships and the operations of addition and subtraction as they learn their addition and subtraction facts. They extend this knowledge by adding and subtracting two-digit numbers. Students begin to use estimation to determine whether a sum or difference is reasonable.
Students understand the process of measuring length, and progress from measuring length with objects such as toothpicks or craft sticks to using standard tools such as rulers or meter sticks. They also tell time on different types of clocks.
Geometry, Data/Statistics/Probability, Numbers, and Operations
Students solve problems involving two- and three-dimensional geometric figures. They use graphs and their understanding of numbers, addition, and subtraction to make predictions, answer questions, and pose new questions about data. Students build a foundation for understanding multiplication and division.
Reasoning, problem solving, and communication
Students further develop the concept that doing mathematics involves solving problems and talking about what they did to solve them. Problems in second grade emphasize addition and subtraction with increasingly large numbers, measurement, and sometimes early concepts of multiplication and division. Students communicate their mathematical thinking and make increasingly more convincing mathematical arguments. Students participate in mathematical discussions involving questions like “How did you get that?”, “Why did you use that strategy?”, and “Why is that true?” They use grade-appropriate mathematical language as they discuss and refine solutions to problems.