Grade 3 Math

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In these lessons, we will learn digraphs & diphthongs, grammar, numbers, addition, subtraction, multiplication, division, mixed operations, rounding & estimating, measurement, geometry, fraction, decimals, and probability & statistics to the levels appropriate for Grade 3.

Grade 3 Popular Topics
Phonics	Numbers	Addition
Subtraction	Multiplication	Division
Mixed Operations	Rounding	Measurements
Geometry	Fractions	Decimals
Probability	Math Worksheets	Common Core

Printable Worksheets for Common Core Third Grade

Mixed Operations

Lessons on Multiplication & Division

Multiplication
Interpret products of whole numbers
Division
Interpret whole-number quotients of whole numbers
Word Problems
Use multiplication & division within 100 to solve word problems
Multiplication Division Equations
Determine the unknown whole number in a multiplication or division equation

Properties of Operations
Apply properties of operations as strategies to multiply & divide.
Division
Understand division as an unknown-factor problem
Multiply & Divide
Fluently multiply & divide within 100
Word Problems
Solve two-step word problems using the four operations.
Arithmetic Patterns
Identify arithmetic patterns

One-to-Ten
Use four numbers & the arithmetic functions - Addition, Subtraction, Multiplication & Division (Exponents & Parenthesis) to form the numbers.
Fact Family Multiplication & Division Game
Order of Operations

Order of Operations (+, -, Ã, parenthesis)

Rounding & Estimating

Lessons on Rounding

Rounding Tens & Hundreds
Rounding Numbers
Estimate Numbers
Estimate Sum

Estimate Difference
Estimate Product
Estimate Quotient

Rounding Numbers: to nearest 10
Rounding Numbers: to nearest 100

Rounding & Estimation Games
Rounding Worksheets

Hundreds, Tens, Ones (eg. 536 = 500 + 30 + 6)

Round to nearest 10 (3-digit) (eg. 725 -> 730)
Round to nearest 100 (3-digit) (eg. 651 -> 700)
Round to nearest 10 or 100 (3-digit)

Round to nearest 100 (4-digit) (eg. 2,754 -> 2,800)
Round to nearest 1000 (eg. 3,542 -> 4,000)
Round to nearest 10, 100, 1000

Measurements

Lessons On Measurements

Measure Time
Measure Liquid Volume & Mass
Measuring Length using a Ruler

Standard Measurement in the US
Metric System
Converting Metric Units
Measurement Worksheets

Standard Measurements
Metric Measurements

Metric Length Conversions: mm, cm, m, km
Metric Weight Conversion: kg, g, mg

Measurement Games
Measurement games to help you learn customary & metric units

Geometry

Lessons on Shapes & Symmetry

2D & 3D shapes
Sort the shapes into 2D & 3D

3D shapes
Pyramids, prisms, cylinders, cones, spheres (faces, edges, vertices)

Lines of Symmetry
Geometry Worksheets

Area of Rectangles
Area of Rectangles Word Problems

Perimeter (rectangles & regular shapes)
Perimeter Word Problems (rectangles & regular shapes)

Geometric Terms

Lessons on Geometric Terms

Line, Ray, Line Segment point & plane

Geometric Terms
Match the terms with their correct definition.

Angles

Lessons On Angles

Types of Angles
Acute, Right, Obtuse & Straight angles

Introduction to Angles
Match the terms related to the classification of angles.

Types Of Triangles

Lessons on Triangles

Triangle Songs
Songs to help you remember the different types of triangles

Types of Triangles
Acute, Obtuse, Right, Equilateral, Isosceles, Scalene

Polygons - Perimeter & Area

Lessons on Perimeter & Area

Quadrilaterals
Understand that shapes in different categories may share attributes
Partition Shapes
Partition shapes into parts with equal areas.

Understand Area
Recognize area as an attribute of plane figures & understand concepts of area measurement.
Measure Area
Measure areas by counting unit squares

Area of Rectangles
Relate area to the operations of multiplication & addition.
Perimeter of Polygons
Solve real world & mathematical problems involving perimeters of polygons

Types of Polygons
Perimeter of Polygons
How to find perimeter of polygons
Area of Rectangles
How to find the area of rectangles using a formula?
Area & Perimeter Worksheets

Area & Perimeter of Rectangles 1
Area & Perimeter of Rectangles 2
Area & Perimeter of Rectangles 3

Perimeter & Area Games Games for you to learn about perimeter & area

Volume

Lessons On Volume

Volume of Cubes
How to find the volume of cubes using a formula?
Volume of Rectangular Prisms
How to find the volume of rectangular prisms using a formula?

Cubes Game
Fill a box with cubes, rows of cubes, or layers of cubes. The number of unit cubes needed to fill the entire box is known as the _volume_ of the box. Can you determine a rule for finding the volume of a box if you know its width, depth, & height?

Geometry - Volume A quiz on the volume of rectangular.

Fractions

Lessons On Fractions

Understanding Fractions
Fractions represent part of a whole. Compare Fractions with Like Denominator

Understand Fractions
Equivalent Fractions

Reading & Writing Fractions
Numerator & Denominator. Introduction to Fractions

Equivalent Fractions
Fractions on the Number Line
Compare Fractions Visually
Compare Like Fractions

Reduce Fractions
Simplify Fractions
Add Fractions with the same denominator
Subtract Fractions with the same denominator
Explain Mixed Numbers
GCD & LCM Worksheets

Find Greatest Common Factor by listing factors
Find Greatest Common Factor using Factor Trees
Least Common Multiple (LCM) or Least Common Denominator (LCD)
Factors Worksheets & Games

Fractions in Words
Equivalent Fractions
Simplifying Fractions

Add Fractions
(with common denominator & no simplifying)
Subtract Fractions
(with common denominator & no simplifying)
Add & Subtract Fractions
(with common denominator & simplifying answers)

Fraction Games
Games to help you learn about fractions, equivalent fractions, adding fractions & subtracting fractions.

Decimals

Lessons On Decimals

What is a Decimal?
Reading & Writing Decimals

Decimals to Fractions
Fractions to Decimals

Add Decimals
Subtracting Decimals
Decimal Songs
Decimal Worksheets

Add Decimals: up to tenths
Add Decimals: up to hundredths
Subtract Decimals: up to tenths
Subtract Decimals: up to hundredths

Decimal Games
Play the decimal games to improve your math skills.

Probability & Statistics

Lessons On Probability & Statistics

Mean, Median, Mode & Range
Mean, Median, Mode & Range Songs

Picture & Bar Graphs
Draw a scaled picture graph & a scaled bar graph to represent a data set with several categories
Statistics
Tally Charts Line Plots Bar Charts / Bar Graphs
Statistics Games
Tally Charts Line Plots Bar Charts / Bar Graphs

Probability
When to use - Certain, Likely, Unlikely, & Impossible
Probability
Suitable for Grade 3. Select from Certain, Probable, Unlikely & Impossible.

Probability Games
Learn more about the concepts of probability

Games

Games & Activities

Addition Games
Addition & Subtraction Games
Division Games
Even & Odd Number Games
Multiplication Games
Place Value Games

Rounding Games
Comparing Fractions
Fraction Games
Learn about Fractions, Improper Fractions & Mixed Numbers, Compare Fractions, Equivalent Fractions, Add, Subtract, Multiply & DivideFractions, Compare Fractions with Decimals & Percentages
Reading & Literacy Games

The Domino Game - Match & Add Numbers
Place Value Game - Get the Largest Number
Number Comparisons - Which is the Largest Number?

Check out our most popular games!

Fraction Concoction Game:
Master fractions in the lab: mix, add, and subtract beakers to create the perfect concoction!

Fact Family Game:
Complete fact families and master the link between addition & subtraction and multiplication & division.

Number Bond Garden:
Clear the board by matching number pairs that sum to ten in this garden-themed mental math puzzle.

Online Addition Subtraction Game:
Practice your addition and subtraction skills to help the penguin find its mummy.

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Grade 3 Math

Phonics

Grammar for Kids

Numbers

Place Value

Roman Numerals (I, V, X, L, C, D, M)

Addition

Subtraction

Multiplication

Division