3rd Grade Math Worksheets

Third grade is the year of multiplication and division: students learn what they mean, master the facts within 100, and solve one- and two-step word problems. They also meet fractions as numbers on a number line, round and add within 1,000, find area and perimeter, tell time to the minute, and read scaled graphs. Every worksheet below is free, prints as a PDF with an answer key, and can be assigned online.

By Standard

Common Core

Operations and Algebraic Thinking

3.OA.13.OA.23.OA.33.OA.43.OA.53.OA.63.OA.73.OA.83.OA.9

Number and Operations in Base Ten

3.NBT.13.NBT.23.NBT.3

Number and Operations—Fractions

3.NF.13.NF.2A3.NF.2B3.NF.3A3.NF.3B3.NF.3C3.NF.3D

Measurement and Data

3.MD.13.MD.23.MD.33.MD.43.MD.5A3.MD.5B3.MD.63.MD.7A3.MD.7B3.MD.7C3.MD.7D3.MD.8

Geometry

3.G.13.G.2

By Topic

Multiplication & Division Facts

Fact drills, mixed practice and missing-factor problems within 100.

Mixto2 (tablas)Mixto (horizontal)

+41+42 more worksheets →

3.OA.73.OA.4

Equivalent & Comparing Fractions

Find equivalent fractions, write whole numbers as fractions, and compare fractions.

Identificar ubicación de fracciones en una recta numéricaComparar fracciones (mismo numerador o denominador)Encontrar fracción equivalente (visual)

+10+11 more worksheets →

3.NF.3A3.NF.3B3.NF.3C3.NF.3D

Understanding Multiplication & Division

Equal groups, arrays, number lines and tape diagrams, plus simple word problems.

División en relación con la multiplicaciónEntender la multiplicación por decenasReescribir suma como multiplicación

+10+11 more worksheets →

3.OA.13.OA.23.OA.33.OA.6

Understanding Fractions

Name and shade unit fractions and split shapes into equal parts.

Escribir fraccionesIdentificar fraccionesIdentificar figuras particionadas

+4+5 more worksheets →

3.NF.13.G.2

Area

Count unit squares, multiply side lengths, and find the area of combined rectangles.

Encontrar el áreaÁrea rectilíneaEncontrar el área con mosaicos

+4+5 more worksheets →

3.MD.5A3.MD.5B3.MD.63.MD.7A3.MD.7B3.MD.7C3.MD.7D

Telling Time & Elapsed Time

Read clocks to the minute and solve elapsed time word problems.

Leer un reloj (incrementos de 1 minuto)Problemas de palabrasProblemas de palabras – múltiplos de 5

+18+19 more worksheets →

3.MD.1

Bar Graphs & Line Plots

Read and draw scaled bar graphs and picture graphs, and line plots in quarter inches.

Interpretar un diagrama de líneas5 barras - unidad únicaMedir y mostrar datos

+4+5 more worksheets →

3.MD.33.MD.4

Two-Step Word Problems

Solve two-step word problems using all four operations.

Sumar, restar, multiplicar y dividirSumar y multiplicarCociente de 1 dígito (sin residuo)

+5+6 more worksheets →

3.OA.8

Adding & Subtracting Within 1,000

Add and subtract 3-digit numbers with regrouping, including across zeros.

Restar con reagrupaciónSuma y resta con reagrupaciónResolver problemas mixtos dentro de 1000 (+ -)

+4+5 more worksheets →

3.NBT.2

Rounding & Estimating

Round to the nearest 10 or 100 and use rounding to estimate answers.

Redondear a decenas y centenasRedondear a decenas con recta numéricaRedondear a centenas con recta numérica

+4+5 more worksheets →

3.NBT.1

Fractions on a Number Line

Partition number lines and locate and name fractions on them.

Encontrar fracciones en una recta numéricaDeterminar el valor de una fracción en una recta numéricaParticionar y etiquetar fracciones en una recta numérica

+0+1 more worksheets →

3.NF.2A3.NF.2B

Properties of Multiplication

Use the commutative, associative and distributive properties to multiply.

Mixto – completar el espacio en blancoUsar la propiedad distributivaExaminar la propiedad distributiva

+9+10 more worksheets →

3.OA.5

Perimeter

Find perimeters and missing sides, and compare rectangles with the same area or perimeter.

Lado faltante (perímetro) ELado faltante (área) ERectángulos: misma área y distinto perímetro

+2+3 more worksheets →

3.MD.8

Multiplying by Multiples of 10

Multiply one-digit numbers by 10, 20, 30 and other multiples of ten.

Multiplicar múltiplos de diezMultiplicación de 1 dígito (tradicional)

3.NBT.3

Shapes & Polygons

Classify polygons and quadrilaterals by their sides and attributes.

Figuras regulares (3,4,5,6,7,8,9 y 10 lados)Identificar polígonos regulares e irregularesProblemas de palabras (3–10 lados)

+2+3 more worksheets →

3.G.1

Liquid Volume & Mass

Read scales and containers and estimate grams, kilograms and liters.

Capacidad métrica (visual)Estimar pesoLeer una balanza

+1+2 more worksheets →

3.MD.2

Patterns & Function Machines

Find rules for function machines and spot patterns in the multiplication table.

Determinar la regla de la máquina de funciones (+ o -) (opción múltiple)Examinar una tabla de multiplicaciónDeterminar la regla de la máquina de funciones (+ o -)

+0+1 more worksheets →

3.OA.9