Oregon Mathematics Standards: Grade 3
Skills available for Oregon Grade 3 math standards
Section
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3.OA
Algebraic Reasoning: Operations
3.OA.A Represent and solve problems involving addition and subtraction.
3.OA.A.1 Represent and interpret multiplication of two factors as repeated addition of equal groups.
Equal groups
Arrays
Number lines
Relate addition and multiplication
3.OA.A.1 Represent and interpret multiplication of two factors as repeated addition of equal groups.
Equal groups
Arrays
Number lines
Relate addition and multiplication
3.OA.A.2 Represent and interpret whole-number quotients as dividing an amount into equal sized groups.
3.OA.A.2 Represent and interpret whole-number quotients as dividing an amount into equal sized groups.
3.OA.A.3 Use multiplication and division within 100 to solve problems in authentic contexts involving equal groups, arrays, and/or measurement quantities.
Multiplication
Division
Mixed operations
3.OA.A.3 Use multiplication and division within 100 to solve problems in authentic contexts involving equal groups, arrays, and/or measurement quantities.
Multiplication
Division
Mixed operations
3.OA.A.4 Determine the unknown number in a multiplication or division equation relating three whole numbers by applying the understanding of the inverse relationship of multiplication and division.
3.OA.A.4 Determine the unknown number in a multiplication or division equation relating three whole numbers by applying the understanding of the inverse relationship of multiplication and division.
3.OA.B Understand properties of multiplication and the relationship between multiplication and division.
3.OA.B.5 Apply properties of operations as strategies to multiply and divide.
Properties of multiplication
Relationship between multiplication and division
3.OA.B.5 Apply properties of operations as strategies to multiply and divide.
Properties of multiplication
Relationship between multiplication and division
3.OA.B.6 Understand division as an unknown-factor in a multiplication problem.
3.OA.B.6 Understand division as an unknown-factor in a multiplication problem.
3.OA.C Multiply and divide within 100.
3.OA.C.7 Fluently multiply and divide within 100 using accurate, efficient, and flexible strategies and algorithms based on place value and properties of operations.
Multiplication skill builders
Multiplication facts for 2, 3, 4, 5, and 10
Multiplication facts for 6, 7, 8, and 9
Multiplication facts up to 10
Division skill builders
Division facts for 2, 3, 4, 5, and 10
Division facts for 6, 7, 8, and 9
Division facts up to 10
Mixed operations
Properties of operations
3.OA.C.7 Fluently multiply and divide within 100 using accurate, efficient, and flexible strategies and algorithms based on place value and properties of operations.
Multiplication skill builders
Multiplication facts for 2, 3, 4, 5, and 10
Multiplication facts for 6, 7, 8, and 9
Multiplication facts up to 10
Division skill builders
Division facts for 2, 3, 4, 5, and 10
Division facts for 6, 7, 8, and 9
Division facts up to 10
Mixed operations
Properties of operations
3.OA.D Solve problems involving the four operations, and identify and explain patterns in arithmetic.
3.OA.D.8 Solve two-step problems in authentic contexts that use addition, subtraction, multiplication, and division in equations with a letter standing for the unknown quantity.
Two-step word problems
Estimation
3.OA.D.8 Solve two-step problems in authentic contexts that use addition, subtraction, multiplication, and division in equations with a letter standing for the unknown quantity.
Two-step word problems
Estimation
3.OA.D.9 Identify and explain arithmetic patterns using properties of operations, including patterns in the addition table or multiplication table.
3.OA.D.9 Identify and explain arithmetic patterns using properties of operations, including patterns in the addition table or multiplication table.
3.NBT
Numeric Reasoning: Base Ten Arithmetic
3.NBT.A Use place value understanding and properties of operations to perform multi-digit arithmetic.
3.NBT.A.1 Use place value understanding to round whole numbers within 1000 to the nearest 10 or 100.
3.NBT.A.1 Use place value understanding to round whole numbers within 1000 to the nearest 10 or 100.
3.NBT.A.2 Fluently add and subtract within 1000 using accurate, efficient, and flexible strategies and algorithms based on place value and properties of operations.
Addition
Subtraction
Addition and subtraction
Properties of operations
Relationship between addition and subtraction
3.NBT.A.2 Fluently add and subtract within 1000 using accurate, efficient, and flexible strategies and algorithms based on place value and properties of operations.
Addition
Subtraction
Addition and subtraction
Properties of operations
Relationship between addition and subtraction
3.NBT.A.3 Find the product of one-digit whole numbers by multiples of 10 in the range 10-90, such as 9 × 80. Students use a range of strategies and algorithms based on place value and properties of operations.
3.NBT.A.3 Find the product of one-digit whole numbers by multiples of 10 in the range 10-90, such as 9 × 80. Students use a range of strategies and algorithms based on place value and properties of operations.
3.NF
Numeric Reasoning: Fractions
3.NF.A Develop understanding of fractions as numbers.
3.NF.A.1 Understand the concept of a unit fraction and explain how multiple copies of a unit fraction form a non-unit fraction.
Understand fractions
Show fractions
Match fractions and models
Word problems
3.NF.A.1 Understand the concept of a unit fraction and explain how multiple copies of a unit fraction form a non-unit fraction.
Understand fractions
Show fractions
Match fractions and models
Word problems
3.NF.A.2 Understand a fraction as a number on the number line; represent fractions on a number line diagram.
Unit fractions
Non-unit fractions
3.NF.A.2 Understand a fraction as a number on the number line; represent fractions on a number line diagram.
Unit fractions
Non-unit fractions
3.NF.A.3 Explain equivalence of fractions in special cases, and compare fractions by reasoning about their size.
Model equivalent fractions
Identify equivalent fractions
Express whole numbers as fractions
Compare using area models
Compare using number lines
Compare fractions
3.NF.A.3 Explain equivalence of fractions in special cases, and compare fractions by reasoning about their size.
Model equivalent fractions
Identify equivalent fractions
Express whole numbers as fractions
Compare using area models
Compare using number lines
Compare fractions
3.GM
Geometric Reasoning and Measurement
3.GM.A Reason with shapes and their attributes.
3.GM.A.1 Understand that shapes in different categories may share attributes and that shared attributes can define a larger category.
Attributes of quadrilaterals
Identify quadrilaterals
Classify quadrilaterals
Draw examples
3.GM.A.1 Understand that shapes in different categories may share attributes and that shared attributes can define a larger category.
Attributes of quadrilaterals
Identify quadrilaterals
Classify quadrilaterals
Draw examples
3.GM.A.2 Partition shapes into parts with equal areas and express the area of each part as a unit fraction of the whole.
Show fractions
Identify fractions
3.GM.A.2 Partition shapes into parts with equal areas and express the area of each part as a unit fraction of the whole.
Show fractions
Identify fractions
3.GM.B Solve problems involving measurement and estimation.
3.GM.B.3 Tell, write, and measure time to the nearest minute. Solve problems in authentic contexts that involve addition and subtraction of time intervals in minutes.
Tell and write time
Time intervals
Time interval word problems
3.GM.B.3 Tell, write, and measure time to the nearest minute. Solve problems in authentic contexts that involve addition and subtraction of time intervals in minutes.
Tell and write time
Time intervals
Time interval word problems
3.GM.B.4 Measure, estimate and solve problems in authentic contexts that involve liquid volumes and masses of objects using standard units of grams (g), kilograms (kg), and liters (l).
3.GM.B.4 Measure, estimate and solve problems in authentic contexts that involve liquid volumes and masses of objects using standard units of grams (g), kilograms (kg), and liters (l).
3.GM.C Geometric measurement: understand concepts of area and relate area to multiplication and to addition.
3.GM.C.5 Recognize area as an attribute of plane figures and understand concepts of area measurement presented in authentic contexts by tiling and counting unit squares.
3.GM.C.5 Recognize area as an attribute of plane figures and understand concepts of area measurement presented in authentic contexts by tiling and counting unit squares.
3.GM.C.6 Measure areas by counting standard and non-standard unit squares.
3.GM.C.6 Measure areas by counting standard and non-standard unit squares.
3.GM.C.7 Relate area to multiplication and addition. Use relevant representations to solve problems in authentic contexts.
Area of rectangles and squares
Complex figures
3.GM.C.7 Relate area to multiplication and addition. Use relevant representations to solve problems in authentic contexts.
Area of rectangles and squares
Complex figures
3.GM.D Geometric measurement: recognize perimeter
3.GM.D.8 Solve problems involving authentic contexts for perimeters of polygons.
Find perimeter
Find an unknown side
Real-world problems
Relationship between area and perimeter
3.GM.D.8 Solve problems involving authentic contexts for perimeters of polygons.
Find perimeter
Find an unknown side
Real-world problems
Relationship between area and perimeter
3.DR
Data Reasoning
3.DR.A Pose investigative questions and collect/consider data.
3.DR.A.1 Generate questions to investigate situations within the classroom, school or community. Collect or consider measurement data that can naturally answer questions by using information presented in a scaled picture and/or bar graph.
Collect data
Create data displays
Interpret data
3.DR.A.1 Generate questions to investigate situations within the classroom, school or community. Collect or consider measurement data that can naturally answer questions by using information presented in a scaled picture and/or bar graph.
Collect data
Create data displays
Interpret data
3.DR.B Analyze, represent, and interpret data.
3.DR.B.2 Analyze measurement data with a scaled picture graph or a scaled bar graph to represent a data set with several categories. Interpret information presented to answer investigative questions.
Bar graphs
Line plots
Picture graphs
3.DR.B.2 Analyze measurement data with a scaled picture graph or a scaled bar graph to represent a data set with several categories. Interpret information presented to answer investigative questions.
Bar graphs
Line plots
Picture graphs