Maryland 2025 grade 3 math worksheets

Every Maryland grade 3 math standard by its own code, with the printable sheets that practise it: 26 of 26 have sheets. New problems every time, answer keys and a one-page guide for grown-ups. Free, no sign-up.

Open Maryland grade 3 sheets

Number & operation sense

3.NOS.A.1Read, write, round and compare whole numbers within 10,000.Rounding to 10 and 100 · Numbers to 10,000
3.NOS.B.2Understand multiplying as equal groups: 5 × 7 is 5 groups of 7.Equal groups
3.NOS.B.3Understand dividing as sharing equally or making equal groups.Sharing equally
3.NOS.C.4Use turn-around facts, grouping and breaking apart to make multiplying easier.Multiplying with properties
3.NOS.C.5Solve division by finding a missing factor: 32 ÷ 8 asks 8 × ? = 32.Missing factors · Division as a missing factor
3.NOS.D.6Estimate sums and differences within 1,000, and know when an estimate is enough.Estimating sums and differences
3.NOS.D.7Add and subtract within 1,000 fluently, picking the best strategy.Adding and subtracting within 1000
3.NOS.D.8Multiply one-digit numbers by multiples of 10, like 9 × 80.Multiplying by tens
3.NOS.E.9Multiply and divide within 100, and know the times tables from memory.Times tables
3.NOS.F.10Understand a fraction as equal parts of a whole: 3/4 is three parts of size 1/4.Fractions of a whole · Equal parts as fractions
3.NOS.F.11Name a fraction of a set: 2 red balls out of 5 balls is 2/5 of the set.Fractions of a set
3.NOS.F.12Place fractions on a number line.Fractions on a number line
3.NOS.F.13Find equivalent fractions and compare fractions by thinking about their size.Equivalent and comparing fractions

Algebraic thinking

3.AT.A.1Solve multiplying and dividing story problems within 100 about groups, arrays and area.Multiplication and division stories
3.AT.A.2Solve two-step story problems with all four operations, and check the answer makes sense.Two-step story problems
3.AT.A.3Find number patterns and explain them, like why 4 times any number is even.Patterns in tables

Geometry & measurement

3.GR.A.1Measure lengths to the nearest half or quarter unit with a ruler.Measuring to ¼ inch
3.GR.A.2Solve story problems adding and subtracting minutes, using a number line.Time to the minute
3.GR.A.3Measure and estimate liquid volume and mass in liters, grams and kilograms.Liters and kilograms
3.GR.A.4Solve one-step story problems about mass or liquid volume in the same units.Liters and kilograms
3.GR.B.5See that shapes in different groups can share features, like quadrilaterals.Quadrilaterals
3.GR.C.6Understand area and measure it by counting unit squares.What is area? · Measuring area
3.GR.C.7Connect area to multiplying and adding, including shapes made of rectangles.Area by multiplying
3.GR.C.8Understand perimeter as the distance around a shape, and measure it.Perimeter as distance around
3.GR.C.9Solve perimeter problems, including finding a missing side.Perimeter

Data & statistics

3.DS.A.1Make scaled picture graphs, bar graphs and line plots, and tell the story in the data.Scaled graphs · Measuring to ¼ inch

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