3rd Grade Math (North Dakota Content Standards)

Mathematical Attributes, grades 3–5 (MA)

• 3-5.MA.P Make and carry out a logical plan to solve problems, check answers make sense and try other strategies (applies to grades 3–5).
• 3-5.MA.C Make connections and summarize related ideas with supporting evidence (applies to grades 3–5).
• 3-5.MA.R Reason logically from experience and knowledge, using evidence for conclusions (applies to grades 3–5).

Number and Operations (NO)

• 3.NO.CC.1 Read and write numbers to 10,000 with objects, pictures, digits, words and expanded form.
• 3.NO.NBT.1 Compare two four-digit numbers with >, < or =, justifying with place value.
• 3.NO.NBT.2 Round whole numbers to the closest ten or hundred.
• 3.NO.NBT.3 Add and subtract within 1,000 using place value, algorithms and/or the link between the operations.
• 3.NO.NBT.4 Multiply single-digit numbers by multiples of ten, with products up to 100.
• 3.NO.NF.1 Split 2D figures into equal areas and name each part as a unit fraction, including sixths and eighths.
• 3.NO.NF.2 Place fractions as numbers on a number line.
• 3.NO.NF.3 Show equivalent fractions with pictures and number lines.
• 3.NO.NF.4 Write whole numbers as fractions and find fractions equal to whole numbers, beyond 1.
• 3.NO.NF.5 Compare fractions with the same numerator or denominator (2, 3, 4, 6, 8) using >, < or =.

Algebraic Reasoning (AR)

• 3.AR.OA.1 Use mental strategies for multiplication and division facts within 100, recalling 5 × 5 and tens facts automatically.
• 3.AR.OA.2 Solve and justify multiplication and division equations using operation properties.
• 3.AR.OA.3 Solve two-step addition and subtraction word problems within 1,000, including letter unknowns.
• 3.AR.OA.4 Solve multiplication word problems within 100 with unknowns, using grouping models and equations.
• 3.AR.OA.5 Solve division word problems within 100 with unknowns, using grouping models and equations.
• 3.AR.OA.6 Find arithmetic patterns and explain them using properties of operations.

Geometry and Measurement (GM)

• 3.GM.G.1 Identify lines, right, acute and obtuse angles, and perpendicular and parallel lines in 2D shapes.
• 3.GM.G.2 Sort quadrilaterals into categories by their attributes.
• 3.GM.G.3 Identify lines of symmetry in quadrilaterals.
• 3.GM.M.1 Measure lengths with rulers marked in halves and fourths of an inch.
• 3.GM.M.2 Measure and estimate liquid volume and mass in grams, kilograms and liters and solve one-step problems.
• 3.GM.M.3 Read and record time to the minute and measure time spans in minutes.
• 3.GM.M.4 Solve elapsed-time word problems on the hour and half hour.
• 3.GM.M.5 Solve word problems with bills and coins using $ and ¢ (no decimals).
• 3.GM.M.6 Find rectangle perimeters or a missing side, including same perimeter with different area and the reverse.
• 3.GM.M.7 Understand area as covering a flat shape with unit squares, with no gaps or overlaps.
• 3.GM.M.8 Find the area of a whole-number rectangle by counting squares and show it equals multiplying the sides.

Data, Probability and Statistics (DPS)

• 3.DPS.D.1 Pose questions and collect, organize and show data with more than four categories in scaled picture and bar graphs.
• 3.DPS.D.2 Gather data and build line plots with whole, half and quarter marks.
• 3.DPS.D.3 Make simple statements from graphs to solve one- and two-step problems.