Skills available for Oregon
first-grade
math standards
Standards are in
black
and IXL math skills are in blue. Hold your
mouse over the name of a skill to view a sample problem.
Click on the name of a skill to practice that skill.
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1.1
Number and Operations
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1.1.1
Compare and order whole numbers to 100.
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1.1.2
Represent whole numbers on a number line, demonstrating an understanding of the sequential order of the counting numbers and their relative magnitudes.
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1.1.3
Count and group objects in tens and ones.
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1.1.4
Identify the number of tens and ones in whole numbers between 10 and 100, especially recognizing the numbers 10 to 19 as 1 group of ten and a particular number of ones.
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1.1.5
Determine the value of collections of pennies, nickels, and dimes.
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1.2
Number and Operations and Algebra
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1.2.1
Model "part-whole," "adding to," "taking away from," and "comparing" situations to develop an understanding of the meanings of addition and subtraction.
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1.2.2
Develop and use efficient strategies for adding and subtracting whole numbers using a variety of models, including discrete objects, length-based models (e.g., lengths of connecting cubes) and number lines.
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1.2.3
Apply with fluency sums to 10 and related subtraction facts.
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1.2.4
Use the concept of commutative [4 + 2 = 2 + 4], associative [(4 + 3) + 7 = 4 + (3 + 7)], and identity [0 + 3 = 3] properties of addition to solve problems involving basic facts.
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1.2.5
Relate addition and subtraction as inverse operations.
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1.2.6
Identify, create, extend, and supply a missing element in number patterns involving addition or subtraction by a single-digit number.
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1.3
Geometry
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1.3.1
Describe geometric attributes of shapes (e.g., round, corners, sides) to determine how they are alike and different.
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1.3.2
Recognize and create shapes that are congruent or have symmetry.
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1.3.3
Compose and decompose shapes (e.g., cut a square into two right triangles and put two cubes together to make a rectangular prism), thus building an understanding of part-whole relationships as well as the properties of the original and composite shapes.
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1.3.4
Recognize shapes when viewed from different perspectives and orientations.
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