South Dakota (2027–28) grade 3 math worksheets

Every South Dakota 2027–28 grade 3 math standard by its own code, with the printable sheets that practise it: 50 of 50 have sheets. New problems every time, answer keys and a one-page guide for grown-ups. Free, no sign-up.

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Numbers & operations

3.N.1Round whole numbers to the nearest 10 or 100.Rounding to 10 and 100
3.N.2Break four-digit numbers into thousands, hundreds, tens, and ones.Numbers to 10,000
3.N.3Read and write numbers to 10,000 in standard, word, and expanded form.Numbers to 10,000

Operations & algebraic thinking

3.OA.1Use arrays, equal groups, and number lines to explain multiplication.Equal groups
3.OA.2Use arrays, equal groups, and number lines to explain division as equal sharing.Sharing equally
3.OA.3Solve multiply and divide story problems within 100 with drawings and equations.Multiplication and division stories
3.OA.4Find the missing number in a multiplication or division equation.Missing factors
3.OA.5Use properties of operations to multiply and divide.Multiplying with properties
3.OA.6Know that multiplication and division undo each other.Division as a missing factor
3.OA.7Use arrays, groups, and number lines to relate multiplying and dividing within 100.Times tables
3.OA.8Use order, grouping, and identity properties for both adding and multiplying.Multiplying with properties
3.OA.9Solve two-step story problems with all four operations and check by estimating.Two-step story problems
3.OA.10Find and explain number patterns.Patterns in tables

Fractions

3.F.1The bottom number tells how many equal parts make the whole.Fractions of a whole
3.F.2The top number tells how many equal parts are chosen.Fractions of a whole
3.F.3See fractions as parts of a whole, points on a number line, and unit-fraction multiples.Fractions of a whole · Fractions on a number line
3.F.4Use number lines and area models to explain equivalent fractions (halves to eighths).Equivalent and comparing fractions
3.F.5Find equivalent fractions and explain why they are equal.Equivalent and comparing fractions
3.F.6Write whole numbers as fractions and spot fractions equal to whole numbers.Equivalent and comparing fractions
3.F.7Compare fractions with the same top or bottom number using <, >, =.Equivalent and comparing fractions

Measurement

3.M.1Area is the amount of space inside a flat shape.What is area?
3.M.2A square unit is a 1-by-1 square used to measure area.What is area?
3.M.3A shape covered by n unit squares with no gaps has area n square units.What is area?
3.M.4Measure area by counting square units.Measuring area
3.M.5Use tiles to show that multiplying side lengths gives a rectangle's area.Area by multiplying
3.M.6Solve word problems about the area of rectangles.Area by multiplying
3.M.7Use tiled area models to show the distributive property.Area by multiplying
3.M.8Find area by adding areas of rectangles that do not overlap.Area by multiplying
3.M.9Perimeter is the distance around a flat shape.Perimeter
3.M.10Solve perimeter problems, including missing sides and same perimeter with different areas.Perimeter
3.M.11Measure and estimate liquid volume in customary and metric units.Pounds, ounces, cups and gallons · Liters and kilograms
3.M.12Measure and estimate mass or weight in customary and metric units.Pounds, ounces, cups and gallons · Liters and kilograms
3.M.13Solve one-step word problems with masses or volumes in the same units.Liters and kilograms
3.M.14Measure lengths to the nearest half or quarter inch with a ruler.Measuring to ¼ inch
3.M.15Tell and write time to the nearest minute on analog and digital clocks.Time to the minute
3.M.16Solve time word problems by adding, subtracting, multiplying, or dividing minutes.Time to the minute
3.M.17Find the value of coins and bills up to $100 written with a decimal point.Counting money (Grade 2) · Decimals to hundredths (Grade 4)
3.M.18Make scaled tables, bar graphs, circle graphs, and line graphs from data.Circle graphs · Line graphs (Grade 4) · Scaled graphs
3.M.19Solve one- and two-step questions using scaled tables, bar, circle, and line graphs.Frequency tables · Circle graphs · Line graphs (Grade 4) · Scaled graphs
3.M.20Make a line plot marked in whole numbers, halves, or quarters.Measuring to ¼ inch

Geometry

3.G.1Shapes in different groups can share features that define a larger group.Quadrilaterals
3.G.2A quadrilateral has four sides; relate trapezoids, parallelograms, rectangles, and squares.Quadrilaterals
3.G.3Split shapes into equal-area parts and name each part as a unit fraction.Equal parts as fractions
3.G.4Tell whether a shape is a polygon or not.Angles and faces (Grade 2)
3.G.5Classify polygons by their number of sides.Angles and faces (Grade 2)

Mathematical fluency

3.MF.1Use strategies to multiply facts through 12 mentally and fluently.Times tables to 12 · Multiplying with properties · Times tables
3.MF.2Know from memory multiplication facts for 0, 1, 2, 5, and 10 up to 12.Times tables to 12 · Multiplying with properties · Times tables
3.MF.3Add within 1000 fluently with different strategies.Adding and subtracting within 1000
3.MF.4Subtract within 1000 fluently with different strategies.Adding and subtracting within 1000
3.MF.5Multiply one-digit numbers by multiples of 10 such as 4 x 70.Multiplying by tens

Summaries are ours, in plain words. The same sheets by Common Core: Grade 3.