Demonstrate knowledge of the meaning of decimals and integers and an understanding of how they may be used. Understanding the fundamental operations of addition, subtraction, multiplication, and division is central to knowing mathematics. Proficiency in computational skills is essential to problem-solving and other mathematical activities. Estimating, evaluating reasonableness of answers, and obtaining accuracy in calculations are included in this proficiency. Understanding relationships in operations allows students greater facility with mental computation.
Computational skill promotes efficient and confident learners.
Use multiple strategies in solving problems involving addition and subtraction of whole numbers. Show understanding of addition and subtraction by using a variety of materials, strategies, and symbols. Solve real-life problems involving addition and subtraction of simple fractions. Demonstrate and explain the problem-solving process using appropriate tools and technology and defend the reasonableness of results. Develop proficiency with the facts and algorithms of the four operations on whole numbers using mental math and a variety of materials, strategies, and technologies.