N.1. Number and Operations .

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Study GuideAdd/Subtract/Multiply/Divide Decimals

WorksheetAdd/Subtract/Multiply/Divide Decimals

WorksheetAdd/Subtract/Multiply/Divide Decimals

WorksheetAdd/Subtract/Multiply/Divide Decimals

WorksheetMultipying & Dividing Decimals

N.1. Number and Operations

1.1. Understand numbers, ways of representing numbers, relationships among numbers, and number systems.

1.1.1. Understand the place-value structure of the base-ten number system and be able to represent and compare whole numbers and decimals.

1.3. Compute fluently and make reasonable estimates.

1.3.5. Use visual models, benchmarks, and equivalent forms to add and subtract commonly used fractions and decimals.

N.11. Grade 5 Curriculum Focal Points

11.2. Number and Operations: Developing an understanding of and fluency with addition and subtraction of fractions and decimals

11.2.1. Students apply their understandings of fractions and fraction models to represent the addition and subtraction of fractions with unlike denominators as equivalent calculations with like denominators. They apply their understandings of decimal models, place value, and properties to add and subtract decimals. They develop fluency with standard procedures for adding and subtracting fractions and decimals. They make reasonable estimates of fraction and decimal sums and differences. Students add and subtract fractions and decimals to solve problems, including problems involving measurement.

N.12. Connections to the Grade 5 Focal Points

12.4. Number and Operations: Building on their work in grade 4, students extend their understanding of place value to numbers through millions and millionths in various contexts. They apply what they know about multiplication of whole numbers to larger numbers. Students also explore contexts that they can describe with negative numbers (e.g., situations of owing money or measuring elevations above and below sea level).

N.2. Algebra

2.3. Use mathematical models to represent and understand quantitative relationships.

2.3.1. Model problem situations with objects and use representations such as graphs, tables, and equations to draw conclusions.