CO 3rd Grade Math Curriculum
Give your child the support they need to keep up with Colorado's 3rd grade math class. Lessons and practice problems follow what local schools teach, from multiplication to fractions and area.
About 3rd Grade Colorado math
Colorado follows the Colorado Academic Standards, which organize 3rd grade math across operations, number and base ten, fractions, measurement and data, and geometry. Students this year build fluency with multiplication and division within 100, develop fraction concepts on a number line, work with area and perimeter, and read scaled graphs. StudyPug provides video lessons and practice problems aligned to every one of these strands so students can review at their own pace.
- Strands: operations and algebraic thinking, number and base ten, fractions, measurement and data, and geometry
- Video lessons covering every Colorado Academic Standards topic for 3rd grade math
- Practice problems and step-by-step explanations for multiplication, division, fractions, area, and more
- Content aligned to the Colorado Academic Standards for Grade 3 Mathematics
Curriculum topics by strand
Lessons and practice for every 3rd grade strand, aligned to the Colorado Academic Standards.
Colorado 3rd Grade Math Topics
- Operations and Algebraic Thinking: Interpreting products and quotients of whole numbers, solving multiplication and division word problems within 100, applying properties of operations, understanding division as an unknown-factor problem, achieving fluency with multiplication and division within 100, solving two-step word problems, and identifying arithmetic patterns.
- Number and Operations in Base Ten: Rounding whole numbers to the nearest 10 or 100, fluently adding and subtracting within 1000 using place-value strategies, and multiplying one-digit numbers by multiples of 10.
- Number and Operations - Fractions: Understanding unit fractions, representing fractions on a number line, explaining equivalence of fractions, and comparing fractions by reasoning about their size.
- Measurement and Data: Telling and writing time to the nearest minute, measuring liquid volumes and masses, drawing scaled picture graphs and bar graphs, generating measurement data with rulers marked in halves and fourths of an inch.
- Geometry: Recognizing area as an attribute of plane figures, measuring areas by counting unit squares, relating area to multiplication and addition, solving problems involving perimeters of polygons, understanding shared attributes of shapes, and partitioning shapes into equal parts expressed as unit fractions.
How StudyPug Helps Colorado 3rd Grade Math Students
When a student gets stuck on a concept like fraction equivalence or area measurement, StudyPug lets them go back to the exact lesson that matches what their teacher covered. Each topic includes a worked example followed by practice problems with step-by-step explanations, so students build understanding rather than just memorizing steps. You can explore grade 3 math help to see the full set of lessons available.
For students who want to check their readiness before a classroom test, the math quiz for 3rd grade pulls from across all strands and shows which areas still need work. Parents whose children need a refresher on what came before can also look at the CO grade 2 math curriculum to fill any gaps from the prior year.
Aligned to Colorado 3rd Grade Math Curriculum
Every lesson on StudyPug for 3rd grade math is mapped to the Colorado Academic Standards, the same framework Colorado schools use when planning instruction and preparing students for the CMAS Math assessment. When your child practices on StudyPug, they are working on the skills and concepts their classroom expects them to know.
Written by the StudyPug Math Team
Last updated June 5, 2026
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