The Common Core in Oregon
Skills available for Oregon fourth-grade math standards
Standards are in black and IXL math skills are in dark green. Hold your mouse over the name of a skill to view a sample question. Click on the name of a skill to practice that skill.
Show alignments for:
- Oregon Mathematics Standards Oregon Mathematics Standards
- Oregon Common Core State Standards Oregon Common Core State Standards
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4.OA Algebraic Reasoning: Operations
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4.OA.A Use the four operations with whole numbers to solve problems.
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4.OA.A.1 Interpret a multiplication equation as comparing quantities. Represent verbal statements of multiplicative comparisons as equations.
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4.OA.A.2 Multiply or divide to solve problems in authentic contexts involving multiplicative comparison, distinguishing multiplicative comparison from additive comparison.
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4.OA.A.3 Solve multistep problems in authentic contexts using whole numbers and having whole number answers using the four operations, including problems in which remainders must be interpreted.
- Multiply 1-digit numbers by 2-digit numbers: multi-step word problems (4-D.17)
- Multiply 1-digit numbers by 3-digit or 4-digit numbers: multi-step word problems (4-D.24)
- Estimate products word problems: identify reasonable answers (4-D.35)
- Multiply a 2-digit number by a 2-digit number: multi-step word problems (4-D.44)
- Divide 2-digit numbers by 1-digit numbers: interpret remainders (4-E.14)
- Divide larger numbers by 1-digit numbers: interpret remainders (4-E.20)
- Word problems with extra or missing information (4-F.7)
- Multi-step word problems involving subtraction (4-F.9)
- Multi-step word problems with strip diagrams (4-F.10)
- Multi-step word problems (4-F.12)
- Multi-step word problems involving remainders (4-F.13)
- Multi-step word problems: identify reasonable answers (4-F.14)
- Write variable equations to represent word problems (4-G.4)
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4.OA.B Gain familiarity with factors and multiples.
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4.OA.B.4 Find all factor pairs for a whole number in the range 1-100. Determine whether a given whole number in the range of 1-100 is a multiple of a given one-digit number, and whether it is prime or composite.
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4.OA.C Generate and analyze patterns.
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4.OA.C.5 Analyze a number, visual, or contextual pattern that follows a given rule.
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4.NBT Numeric Reasoning: Base Ten Arithmetic
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4.NBT.A Generalize place value understanding for multi-digit whole numbers.
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4.NBT.A.1 Recognize that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right.
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4.NBT.A.2 Read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form. Use understandings of place value within these forms to compare two multidigit numbers using >, =, and < symbols.
- Place value models (4-A.1)
- Convert between standard and expanded form (4-A.2)
- Place value review (4-A.7)
- Writing numbers up to 1,000 in words: convert words to digits (4-A.8)
- Writing numbers up to 1,000 in words: convert digits to words (4-A.9)
- Writing numbers up to 100,000 in words: convert words to digits (4-A.10)
- Writing numbers up to 100,000 in words: convert digits to words (4-A.11)
- Writing numbers up to one million in words: convert words to digits (4-A.12)
- Writing numbers up to one million in words: convert digits to words (4-A.13)
- Spell word names for numbers up to one million (4-A.16)
- Compare numbers up to one hundred thousand (4-A.25)
- Compare numbers up to one million (4-A.26)
- Place value word problems (4-J.1)
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4.NBT.A.3 Use place value understanding to round multi-digit whole numbers to any place.
- Rounding: up to millions place (4-A.21)
- Round a number to any place: up to hundred thousands (4-A.)
- Rounding input/output tables (4-A.22)
- Estimate sums (4-B.10)
- Estimate sums: word problems (4-B.11)
- Estimate differences (4-C.8)
- Estimate differences: word problems (4-C.9)
- Estimate products: multiply by 1-digit numbers (4-D.32)
- Estimate products: multiply by 2-digit numbers (4-D.33)
- Estimate products: word problems (4-D.34)
- Divide by 1-digit numbers: pick the better estimate (4-E.25)
- Estimate sums, differences, products, and quotients: word problems (4-F.6)
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4.NBT.B Use place value understanding and properties of operations to perform multi-digit arithmetic.
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4.NBT.B.4 Fluently add and subtract multi-digit whole numbers using accurate, efficient, and flexible strategies and algorithms based on place value and properties of operations.
- Add two numbers up to five digits (4-B.1)
- Add two numbers up to five digits: word problems (4-B.2)
- Addition: fill in the missing digits (4-B.5)
- Properties of addition (4-B.6)
- Add 3 or more numbers up to millions (4-B.7)
- Choose numbers with a particular sum (4-B.9)
- Subtract numbers up to five digits (4-C.1)
- Subtract numbers up to five digits: word problems (4-C.2)
- Subtraction: fill in the missing digits (4-C.5)
- Choose numbers with a particular difference (4-C.7)
- Comparison word problems with addition and subtraction (4-F.2)
- Mentally add and subtract numbers ending in zeroes (4-F.16)
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4.NBT.B.5 Use representations and strategies to multiply a whole number of up to four digits by a one-digit number, and a two-digit number by a two-digit number using strategies based on place value and the properties of operations.
- Multiplication facts to 12 (4-D.4)
- Multiply 1-digit numbers by 2-digit numbers using area models I (4-D.13)
- Multiply 1-digit numbers by 2-digit numbers using area models II (4-D.14)
- Multiply 1-digit numbers by 2-digit numbers (4-D.15)
- Multiply 1-digit numbers by 2-digit numbers: word problems (4-D.16)
- Multiply 1-digit numbers by 3-digit or 4-digit numbers using area models I (4-D.18)
- Multiply 1-digit numbers by 3-digit or 4-digit numbers using area models II (4-D.19)
- Multiply 1-digit numbers by 3-digit or 4-digit numbers using expanded form (4-D.20)
- Multiply 1-digit numbers by multi-digit numbers using partial products (4-D.21)
- Multiply 1-digit numbers by 3-digit or 4-digit numbers (4-D.22)
- Multiply 1-digit numbers by 3-digit or 4-digit numbers: word problems (4-D.23)
- Multiplication patterns over increasing place values (4-D.27)
- Properties of multiplication (4-D.28)
- Distributive property: find the missing factor (4-D.29)
- Multiply using the distributive property (4-D.30)
- Use one multiplication fact to complete another (4-D.31)
- Multiply 2-digit numbers by 2-digit numbers using area models I (4-D.36)
- Multiply 2-digit numbers by 2-digit numbers using area models II (4-D.37)
- Multiply 2-digit numbers by 2-digit numbers using partial products (4-D.38)
- Box multiplication (4-D.39)
- Lattice multiplication (4-D.40)
- Multiply a 2-digit number by a 2-digit number: complete the missing steps (4-D.41)
- Multiply a 2-digit number by a 2-digit number (4-D.42)
- Multiply a 2-digit number by a 2-digit number: word problems (4-D.43)
- Multiply numbers ending in zeroes (4-D.48)
- Multiply numbers ending in zeroes: word problems (4-D.49)
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4.NBT.B.6 Use representations and strategies to find whole-number quotients and remainders with up to four-digit dividends and one-digit divisors using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division.
- Multiply by 10 or 100 (4-D.26)
- Properties of division (4-E.5)
- Divide 2-digit numbers by 1-digit numbers using arrays (4-E.6)
- Divide 2-digit numbers by 1-digit numbers using area models (4-E.7)
- Divide using the distributive property (4-E.9)
- Divide 2-digit numbers by 1-digit numbers (4-E.11)
- Divide 2-digit numbers by 1-digit numbers: word problems (4-E.12)
- Divide 2-digit numbers by 1-digit numbers: complete the table (4-E.13)
- Divide 2-digit numbers by 1-digit numbers: interpret remainders (4-E.14)
- Divide 3-digit numbers by 1-digit numbers using area models (4-E.15)
- Divide using partial quotients (4-E.16)
- Divide larger numbers by 1-digit numbers (4-E.17)
- Divide larger numbers by 1-digit numbers: word problems (4-E.18)
- Divide larger numbers by 1-digit numbers: complete the table (4-E.19)
- Divide larger numbers by 1-digit numbers: interpret remainders (4-E.20)
- Choose numbers with a particular quotient (4-E.21)
- Division patterns over increasing place values (4-E.22)
- Divide numbers ending in zeroes by 1-digit numbers (4-E.23)
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4.NF Numeric Reasoning: Fractions
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4.NF.A Extend understanding of fraction equivalence and ordering.
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4.NF.A.1 Use visual fraction representations to recognize, generate, and explain relationships between equivalent fractions.
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4.NF.A.2 Compare two fractions with different numerators and/or different denominators, record the results with the symbols >, =, or <, and justify the conclusions.
- Compare fractions using models (4-O.17)
- Benchmark fractions (4-O.18)
- Compare fractions using benchmarks (4-O.19)
- Compare fractions using benchmarks: find the missing numerator (4-O.20)
- Compare fractions (4-O.21)
- Compare fractions: find the missing numerator or denominator (4-O.22)
- Compare fractions in recipes (4-O.23)
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4.NF.B Build fractions from unit fractions.
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4.NF.B.3 Understand a fraction (a/b) as the sum (a) of fractions of the same denominator (1/b). Solve problems in authentic contexts involving addition and subtraction of fractions referring to the same whole and having like denominators.
- Decompose fractions into unit fractions using models (4-P.1)
- Decompose fractions into unit fractions (4-P.2)
- Decompose fractions (4-P.3)
- Decompose fractions multiple ways (4-P.4)
- Add fractions with like denominators using area models (4-P.5)
- Add fractions with like denominators using strip models (4-P.6)
- Add fractions with like denominators using number lines (4-P.7)
- Add fractions with like denominators (4-P.8)
- Subtract fractions with like denominators using area models (4-P.9)
- Subtract fractions with like denominators using strip models (4-P.10)
- Subtract fractions with like denominators using number lines (4-P.11)
- Subtract fractions with like denominators (4-P.12)
- Add and subtract fractions with like denominators using number lines (4-P.13)
- Add and subtract fractions with like denominators: word problems (4-P.16)
- Add and subtract fractions with like denominators in recipes (4-P.17)
- Add and subtract mixed numbers with like denominators (4-P.19)
- Add and subtract mixed numbers with like denominators: word problems (4-P.20)
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4.NF.B.4 Apply and extend previous understandings of multiplication to multiply a fraction by a whole number. Represent and solve problems in authentic contexts involving multiplication of a fraction by a whole number.
- Multiply unit fractions by whole numbers using number lines (4-R.1)
- Multiply unit fractions by whole numbers using models (4-R.2)
- Multiples of unit fractions: find the missing numbers (4-R.3)
- Multiply unit fractions by whole numbers: sorting (4-R.4)
- Multiply unit fractions by whole numbers (4-R.5)
- Multiply unit fractions by whole numbers: word problems (4-R.6)
- Multiply fractions by whole numbers using number lines (4-R.7)
- Multiply fractions by whole numbers using models (4-R.8)
- Multiply fractions by whole numbers using models: complete the equation (4-R.9)
- Multiples of fractions: find the missing numbers (4-R.10)
- Multiply fractions by whole numbers: sorting (4-R.11)
- Multiply fractions by whole numbers (4-R.12)
- Multiply fractions by whole numbers: word problems (4-R.13)
- Multiply fractions and mixed numbers by whole numbers in recipes (4-R.15)
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4.NF.C Understand decimal notation for fractions, and compare decimal fractions.
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4.NF.C.5 Demonstrate and explain the concept of equivalent fractions with denominators of 10 and 100, using concrete materials and visual models. Add two fractions with denominators of 10 and 100.
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4.NF.C.6 Use and interpret decimal notation for fractions with denominators 10 or 100.
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4.NF.C.7 Use decimal notation for fractions with denominators 10 or 100. Compare two decimals to hundredths place by reasoning about their size, and record the comparison using the symbols >, =, or <.
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4.GM Geometric Reasoning and Measurement
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4.GM.A Draw and identify lines and angles, and classify shapes by properties of their lines and angles.
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4.GM.A.1 Explore, investigate, and draw points, lines, line segments, rays, angles, and perpendicular and parallel lines. Identify these in two-dimensional figures.
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4.GM.A.2 Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size.
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4.GM.A.3 Recognize and draw a line of symmetry for a two dimensional figure.
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4.GM.B Solve problems involving measurement and conversion of measurements.
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4.GM.B.4 Know relative sizes of measurement units and express measurements in a larger unit in terms of a smaller unit.
- Which customary unit is appropriate? (4-M.4)
- Compare and convert customary units of length (4-M.5)
- Compare and convert customary units of weight (4-M.6)
- Compare and convert customary units of volume (4-M.7)
- Compare and convert customary units (4-M.8)
- Conversion tables - customary units (4-M.9)
- Which metric unit is appropriate? (4-M.13)
- Compare and convert metric units of length (4-M.14)
- Compare and convert metric units of weight (4-M.15)
- Compare and convert metric units of volume (4-M.16)
- Compare and convert metric units (4-M.17)
- Conversion tables - metric units (4-M.18)
- Convert mixed metric units (4-M.19)
- Convert time units (4-N.1)
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4.GM.B.5 Apply knowledge of the four operations and relative size of measurement units to solve problems in authentic contexts that include familiar fractions or decimals.
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4.GM.B.6 Apply the area and perimeter formulas for rectangles in authentic contexts and mathematical problems.
- Find the perimeter of rectangles using formulas (4-AA.1)
- Perimeter: word problems (4-AA.4)
- Find the area or missing side length of a rectangle (4-AA.7)
- Area: word problems (4-AA.8)
- Area between two rectangles (4-AA.10)
- Relationship between area and perimeter (4-AA.12)
- Area and perimeter: word problems (4-AA.13)
- Rectangles: relationship between perimeter and area word problems (4-AA.14)
- Use area and perimeter to determine cost (4-AA.16)
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4.GM.C Geometric measurement: understand concepts of angle and measure angles.
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4.GM.C.7 Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint. Understand and apply concepts of angle measurement.
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4.GM.C.8 Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure.
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4.GM.C.9 Recognize angle measure as additive. When an angle is decomposed into non-overlapping parts, the angle measure of the whole is the sum of the angle measures of the parts.
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4.DR Data Reasoning
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4.DR.A Pose investigative questions and collect/consider data.
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4.DR.A.1 Generate questions to investigate situations within the classroom, school or community. Determine strategies for collecting or considering data involving addition and subtraction of fractions that can naturally answer questions by using information presented in line plots.
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4.DR.B Analyze, represent, and interpret data.
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4.DR.B.2 Analyze line plots to display a distribution of numerical measurement data, which include displays of data sets of fractional measurements with the same denominator. Interpret information presented to answer investigative questions.
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