IXL Math - Missouri third-grade math standards

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Missouri

Skills available for Missouri third-grade math standards

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3.1 Number and Operations

3.1.1 Understand numbers, ways of representing numbers, relationships among numbers, and number systems
3.1.1.A Read, write and compare numbers
3.1.1.A.1 read, write and compare whole numbers up to 3 digits
- Numbers and comparing: Write numbers in words (Third grade - A.1)
- Numbers and comparing: Put numbers in order (Third grade - A.8)
- Numbers and comparing: Which number is greatest/least? (Third grade - A.9)
- Numbers and comparing: Comparing numbers (Third grade - A.10)
- Numbers and comparing: Comparing - with addition and subtraction (Third grade - A.11)
- Numbers and comparing: Multi-step inequalities (Third grade - A.12)
3.1.1.B Represent and use rational numbers
3.1.1.B.1 represents commonly used fractions: halves, thirds and fourths
- Fractions: Fraction review (Third grade - Q.1)
- Fractions: Fraction review - word problems (Third grade - Q.2)
- Fractions: Compare fractions (Third grade - Q.3)
- Fractions: Equivalent fractions: type the missing numerator or denominator (Third grade - Q.4)
- Fractions: Equivalent fractions: choose the equivalent fraction (Third grade - Q.5)
- Fractions: Reducing fractions to simplest form (Third grade - Q.6)
- Fractions: Order fractions (Third grade - Q.7)
- Fractions: Fractions of a number (Third grade - Q.8)
- Fractions: Fractions of a number - word problems (Third grade - Q.9)
3.1.1.C Compose and decompose numbers
3.1.1.C.1 recognize equivalent representations for the same number and generate them by decomposing and composing numbers
- Place value: Place value models (Third grade - B.1)
- Place value: Place value names (Third grade - B.2)
- Place value: Value of a digit (Third grade - B.3)
- Place value: Identify the digit with a particular place value (Third grade - B.4)
- Place value: Convert to/from a number (Third grade - B.5)
- Place value: Convert between place values (Third grade - B.6)
- Place value: Convert from expanded form (Third grade - B.7)
- Place value: Convert between standard and expanded form (Third grade - B.8)
- Place value: Place value word problems (Third grade - B.9)
3.1.1.D Classify and describe numeric relationships
3.1.1.D.1 classify numbers by their characteristics, including odd and even
- Counting and number patterns: Even or odd I (Second grade - A.6)
- Counting and number patterns: Even or odd II (Second grade - A.7)
- Numbers and comparing: Even and odd I (Third grade - A.4)
- Numbers and comparing: Even and odd II (Third grade - A.5)
3.1.2 Understand meanings of operations and how they relate to one another
3.1.2.A Represent operations
3.1.2.A.1 represent a given situation involving multiplication
- Multiplication: Multiplication sentences (Third grade - E.1)
3.1.2.B Describe effects of operations
3.1.2.B.1 describe the effects of adding and subtracting whole numbers as well as the relationship between the two operations
- Properties: Fact families (Second grade - K.3)
3.1.2.C Apply properties of operations
3.1.2.C.1 apply commutative and identity properties of addition to whole numbers
- Properties: Properties of addition (Third grade - H.3)
3.1.3 Compute fluently and make reasonable estimates
3.1.3.B Develop and demonstrate fluency
3.1.3.B.1 develop fluency with basic number relationships (12 X 12) of multiplication and division
- Multiplication: Multiplication - facts to 12 (Third grade - E.2)
- Multiplication: Word problems - facts to 12 (Third grade - E.3)
- Multiplication: Missing factors - facts to 12 (Third grade - E.4)
- Multiplication: Missing factors - facts to 12 - word problems (Third grade - E.5)
- Multiplication: Squares up to 20 (Third grade - E.6)
- Multiplication: Multiply numbers ending in zeroes (Third grade - E.8)
- Multiplication: Multiply a one-digit number by a larger number (Third grade - E.9)
- Multiplication: Multiply a one-digit number by a larger number - word problems (Third grade - E.10)
- Multiplication: Multiply three or more numbers (Third grade - E.11)
- Multiplication: Multiply three or more numbers - word problems (Third grade - E.12)
- Multiplication: Input/output tables (Third grade - E.13)
- Division: Division facts to 5 (Third grade - F.1)
- Division: Division facts to 10 (Third grade - F.2)
- Division: Division word problems - facts to 10 (Third grade - F.3)
- Division: Divide numbers ending in zeroes (Third grade - F.5)
- Division: Divide larger numbers (Third grade - F.6)
- Division: Divide larger numbers - word problems (Third grade - F.7)
- Division: Input/output tables (Third grade - F.9)
3.1.3.C Compute problems
3.1.3.C.1 apply and describe the strategy used to compute up to a 3-digit addition or subtraction problem
- Addition: Add two numbers up to three digits (Third grade - C.1)
- Addition: Input/output tables - up to three digits (Third grade - C.2)
- Addition: Add two numbers up to three digits - word problems (Third grade - C.3)
- Addition: Add three or more numbers up to three digits each (Third grade - C.6)
- Addition: Add three or more numbers up to three digits - word problems (Third grade - C.7)
- Subtraction: Subtract numbers up to three digits (Third grade - D.1)
- Subtraction: Input/output tables - up to three digits (Third grade - D.2)
- Subtraction: Subtract numbers up to three digits - word problems (Third grade - D.3)
3.1.3.D Estimate and justify solutions
3.1.3.D.1 estimate and justify the results of addition and subtraction of whole numbers
- Estimation and rounding: Solve inequalities using estimation (Third grade - J.4)
- Estimation and rounding: Estimate sums (Third grade - J.5)

3.2 Algebraic Relationships

3.2.1 Understand patterns, relations, and functions
3.2.1.A Recognize and extend patterns
3.2.1.A.1 extend geometric (shapes) and numeric patterns to find the next term
3.2.1.B Create and analyze patterns
3.2.1.B.1 represent patterns using words, tables or graphs
- Subtraction: Input/output tables - four or more digits (Third grade - D.8)
3.2.2 Represent and analyze mathematical situations and structures using algebraic symbols
3.2.2.A Represent mathematical situations
3.2.2.A.1 represent a mathematical situation as an expression or number sentence
3.2.2.B Describe and use mathematical manipulation
3.2.2.B.1 apply the commutative property to addition of whole numbers
- Properties: Solve using properties of addition (Third grade - H.4)
3.2.3 Use mathematical models to represent and understand quantitative relationships
3.2.3.A Use mathematical models
3.2.3.A.1 model problem situations, including multiplication with objects or drawings
3.2.4 Analyze change in various contexts
3.2.4.A Analyze change
3.2.4.A.1 describe quantitative change, such as students growing two inches in a year
- Mixed operations: Interpret data in tables (Third grade - G.1)

3.3 Geometric and Spatial Relationships

3.3.1 Analyze characteristics and properties of two- and three-dimensional geometric shapes and develop mathematical arguments about geometric relationships
3.3.1.A Describe and use geometric relationships
3.3.1.A.1 compare 2- and 3-dimensional shapes by describing their attributes (circle, rectangle, rhombus, trapezoid, triangle, rectangular prism, cylinder, pyramid and sphere)
3.3.1.C Compose and decompose shapes
3.3.1.C.1 predict the results of putting together or taking apart 2- and 3-dimensional shapes
3.3.2 Specify locations and describe spatial relationships using coordinate geometry and other representational systems
3.3.2.A Use coordinate systems
3.3.2.A.1 describe location using common language and geometric vocabulary (forward, back, left, right, north, south, east, west)
3.3.3 Apply transformations and use symmetry to analyze mathematical situations
3.3.3.A Use transformations on objects
3.3.3.A.1 determine if two objects are congruent through a slide, flip or turn
- Geometry: Reflection, rotation, and translation (Third grade - P.5)
3.3.3.C Use symmetry
3.3.3.C.1 identify lines of symmetry in polygons
- Geometry: Symmetry (Third grade - P.3)
3.3.4 Use visualization, spatial reasoning and geometric modeling to solve problems

3.4 Measurement

3.4.1 Understand measurable attributes of objects and the units, systems and processes of measurement
3.4.1.A Determine unit of measurement
3.4.1.A.1 Identify, justify and use the appropriate unit of measure (linear, time, weight)
3.4.1.C Tell and use units of time
3.4.1.C.1 tell time to the nearest five minutes
3.4.1.D Count and compute money
3.4.1.D.1 determine change from $5.00 and add and subtract money values to $5.00
3.4.2 Apply appropriate techniques, tools and formulas to determine measurements
3.4.2.A Use standard or non-standard measurement
3.4.2.A.1 use a referent for measures to make comparisons and estimates
3.4.2.C Apply geometric measurements
3.4.2.C.1 determine the perimeter of polygons
- Geometry: Perimeter (Third grade - P.6)

3.5 Data and Probability

3.5.1 Formulate questions that can be addressed with data and collect, organize and display relevant data to answer them
3.5.1.A Formulate questions
3.5.1.A.1 design investigations to address a given question
3.5.1.C Represent and interpret data
3.5.1.C.1 read and interpret information from line plots and graphs (bar, line, pictorial)
3.5.2 Select and use appropriate statistical methods to analyze data
3.5.2.A Describe and analyze data
3.5.2.A.1 describe the shape of data and analyze it for patterns
3.5.3 Develop and evaluate inferences and predictions that are based on data
3.5.3.A Develop and evaluate inferences
3.5.3.A.1 discuss events related to students' experiences as likely or unlikely
- Probability and statistics: Certain, probable, unlikely, and impossible (Third grade - S.1)