Skills available for Oregon
fourth-grade
math standards
Standards are in
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and IXL math skills are in blue. Hold your
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Click on the name of a skill to practice that skill.
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4.1
Number and Operations
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4.1.1
Extend the base-ten system to read, write, and represent decimal numbers (to the hundredths) between 0 and 1, between 1 and 2, etc.
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4.1.2
Use models to connect and compare equivalent fractions and decimals.
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4.1.3
Determine decimal equivalents or approximations of common fractions.
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4.1.4
Compare and order fractions and decimals.
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4.1.5
Estimate decimal or fractional amounts in problem solving.
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4.1.6
Represent money amounts to $10.00 in dollars and cents, and apply to situations involving purchasing ability and making change.
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4.2
Number and Operations and Algebra
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4.2.1
Apply with fluency multiplication facts to 10 times 10 and related division facts.
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4.2.2
Apply understanding of models for multiplication (e.g., equal-sized groups, arrays, area models, equal intervals on the number line), place value, and properties of operations (commutative, associative, and distributive).
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4.2.3
Select and use appropriate estimation strategies for multiplication (e.g., use benchmarks, overestimate, underestimate, round) to calculate mentally based on the problem situation when computing with whole numbers.
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4.2.4
Develop and use accurate, efficient, and generalizable methods to multiply multi-digit whole numbers.
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4.2.5
Develop fluency with efficient procedures for multiplying multi-digit whole numbers and justify why the procedures work on the basis of place value and number properties.
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4.3
Measurement
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4.3.1
Recognize area as an attribute of two-dimensional regions.
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4.3.2
Determine area by finding the total number of same-sized units of area that cover a shape without gaps or overlaps.
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4.3.3
Recognize a square that is one unit on a side as the standard unit for measuring area.
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4.3.4
Determine the appropriate units, strategies, and tools to solving problems that involve estimating or measuring area.
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4.3.5
Connect area measure to the area model used to represent multiplication and use this to justify the formula for area of a rectangle.
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4.3.6
Find the areas of complex shapes that can be subdivided into rectangles.
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4.3.7
Solve problems involving perimeters and areas of rectangles and squares.
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4.3.8
Recognize that rectangles with the same area can have different perimeters and that rectangles with the same perimeter can have different areas.
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