3rd grade · Math

What a 3rd grade student learns in Math

Grade 3 math develops student fluency with multiplication and division, deepens understanding of concepts of area and fractions, and strengthens problem-solving with increasingly complex word problems. Students expand number sense to 1,000 and apply new arithmetic operations to real-world contexts.

The skills for the year

  • 1Interpret and represent multiplication as groups of equal objects
  • 2Interpret and represent division as sharing or grouping
  • 3Fluently multiply and divide within 100 using strategies and memorization
  • 4Understand and apply properties of multiplication (commutative, associative, distributive)
  • 5Solve two-step word problems using addition, subtraction, multiplication, and division
  • 6Identify arithmetic patterns and explain them using properties of operations
  • 7Understand place value up to 1,000 (hundreds, tens, ones)
  • 8Read, write, and compare numbers up to 1,000
  • 9Round whole numbers to the nearest 10 or 100
  • 10Add and subtract within 1,000 using place value strategies and algorithms
  • 11Multiply one-digit whole numbers by multiples of 10 (e.g., 6 x 40)
  • 12Develop a conceptual understanding of fractions as numbers on the number line
  • 13Represent and interpret fractions with denominators 2, 3, 4, 6, 8
  • 14Compare fractions with the same numerator or denominator
  • 15Solve problems involving measurement and estimation of time, liquid volume, and mass
  • 16Measure and calculate perimeter of polygons and area by tiling and multiplication
  • 17Interpret and create picture graphs and bar graphs to represent data
  • 18Classify shapes by attributes (including quadrilaterals)
  • 19Recognize and draw scaled picture and bar graphs
  • 20Partition shapes into parts with equal areas, expressing the area of each part as a unit fraction

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