Learn To Be Home

Save your progress! Create an account to earn badges and track your learning.

Create Account Sign In
All Courses

Grade 3 Math

All Lessons

1
Level 1
0/4
Reading Numbers to 100 +15 XP
Reading Numbers to 1000 +15 XP
Writing Numbers in Standard Form From Word Form +15 XP
Writing Numbers in Expanded Form +15 XP
2
Level 2
0/4
Comparing Three-Digit Numbers +15 XP
Ordering Three-Digit Numbers +15 XP
Rounding a Two-Digit Number to the Nearest Ten +15 XP
Rounding a Three-Digit Number to the Nearest Ten +15 XP
3
Level 3
0/4
Rounding to the Nearest Hundred +15 XP
Estimating a Sum Using Rounding +15 XP
Estimating a Difference Using Rounding +12 XP
Adding Two-Digit Numbers (Review) +12 XP
4
Level 4
0/4
Adding Three-Digit Numbers Without Regrouping +12 XP
Adding Three-Digit Numbers With Regrouping in the Ones +15 XP
Adding Three-Digit Numbers With Regrouping in the Tens +15 XP
Adding Three-Digit Numbers With Multiple Regroupings +15 XP
5
Level 5
0/4
Solving Word Problems With Addition Within 1000 +15 XP
Subtracting Two-Digit Numbers (Review) +12 XP
Subtracting Three-Digit Numbers Without Regrouping +12 XP
Subtracting Three-Digit Numbers With Regrouping +15 XP
6
Level 6
0/4
Subtracting Across Zeros +15 XP
Solving Word Problems With Subtraction Within 1000 +15 XP
Equal Groups +15 XP
Writing a Multiplication Equation From Equal Groups +15 XP
7
Level 7
0/4
Writing a Multiplication Equation From a Word Description +15 XP
Reading a Multiplication Equation Aloud +15 XP
The Factor and the Product +15 XP
Multiplying With an Array +15 XP
8
Level 8
0/4
Multiplying With a Number Line +15 XP
Multiplying With Repeated Addition +15 XP
Multiplying With an Area Model (Single-Digit) +15 XP
Multiplying by 1 +12 XP
9
Level 9
0/4
Multiplying by 0 +12 XP
Skip Counting by 2 +15 XP
Multiplying by 2 +12 XP
Multiplying by 10 +12 XP
10
Level 10
0/4
Skip Counting by 5 +15 XP
Multiplying by 5 +12 XP
Skip Counting by 3 +15 XP
Multiplying by 3 +12 XP
11
Level 11
0/4
Skip Counting by 4 +15 XP
Multiplying by 4 +12 XP
Multiplying by 9 +12 XP
Multiplying by 6 +12 XP
12
Level 12
0/4
Multiplying by 7 +12 XP
Multiplying by 8 +12 XP
Multiplying by 11 +12 XP
Multiplying by 12 +12 XP
13
Level 13
0/4
Word Problems With 0 and 1 +15 XP
Word Problems With the Times Tables +15 XP
Multiplying a One-Digit Number by 10 +15 XP
Multiplying a One-Digit Number by 20, 30, or Higher Tens +15 XP
14
Level 14
0/4
Multiplying a One-Digit Number by 100 +15 XP
Sharing Equally +15 XP
Grouping +15 XP
Writing a Division Equation From Equal Sharing +15 XP
15
Level 15
0/4
Writing a Division Equation From Equal Grouping +15 XP
Reading a Division Equation Aloud +12 XP
The Dividend, Divisor, and Quotient +15 XP
Dividing With an Array +15 XP
16
Level 16
0/4
Dividing With Repeated Subtraction +15 XP
Dividing With a Number Line +15 XP
Fact Families With Multiplication and Division +15 XP
Writing the Fact Family for a Given Pair +15 XP
17
Level 17
0/4
Solving a Division Problem by Thinking Multiplication +15 XP
Dividing by 1 +6 XP
Dividing by 2 +12 XP
Dividing by 5 +12 XP
18
Level 18
0/4
Dividing by 10 +12 XP
Dividing by 3 +12 XP
Dividing by 4 +12 XP
Dividing by 6 +12 XP
19
Level 19
0/4
Dividing by 7 +12 XP
Dividing by 8 +12 XP
Dividing by 9 +12 XP
Dividing a Number by Itself +6 XP
20
Level 20
0/4
Dividing Zero by a Number +6 XP
Division Word Problems +15 XP
Dividing a Multiple of 10 by a One-Digit Number +15 XP
Dividing a Multiple of 100 by a One-Digit Number +15 XP
21
Level 21
0/4
The Commutative Property of Multiplication +15 XP
Using Commutativity to Simplify a Multiplication +15 XP
The Associative Property of Multiplication +15 XP
Using Associativity to Simplify a Three-Factor Product +15 XP
22
Level 22
0/4
The Distributive Property of Multiplication Over Addition +15 XP
Using the Distributive Property to Break Apart a Factor +15 XP
The Identity Property of Multiplication +12 XP
The Zero Property of Multiplication +12 XP
23
Level 23
0/4
Multiplying Three Numbers Mentally +15 XP
Breaking Apart Larger Multiplications +15 XP
Solving Addition Word Problems +15 XP
Solving Subtraction Word Problems +15 XP
24
Level 24
0/4
Solving Multiplication Word Problems With Equal Groups +15 XP
Solving Multiplication Word Problems With Arrays +15 XP
Solving Division Word Problems With Equal Sharing +15 XP
Solving Division Word Problems With Equal Grouping +15 XP
25
Level 25
0/4
Writing Equations With a Symbol for the Unknown +15 XP
Identifying the Two Steps in a Word Problem +15 XP
Two-Step Problems Using Addition and Subtraction +15 XP
Two-Step Problems Using Multiplication and Addition +15 XP
26
Level 26
0/4
Two-Step Problems Using Division and Subtraction +15 XP
Two-Step Problems Using Any Two of the Four Operations +15 XP
Estimating a Reasonable Answer Before Solving +15 XP
Checking the Reasonableness of an Answer After Solving +15 XP
27
Level 27
0/4
Identifying Patterns in the Multiplication Table +15 XP
Explaining Why an Even Number Times Anything Is Even +15 XP
Identifying Arithmetic Patterns +15 XP
Equal Parts of a Whole +15 XP
28
Level 28
0/4
The Denominator +15 XP
The Numerator +15 XP
Reading a Fraction Aloud +15 XP
Writing a Fraction From a Picture +15 XP
29
Level 29
0/4
Drawing a Picture for a Given Fraction +15 XP
Identifying a Unit Fraction +15 XP
One-Half as a Unit Fraction +15 XP
One-Third as a Unit Fraction +15 XP
30
Level 30
0/4
One-Fourth as a Unit Fraction +15 XP
One-Sixth as a Unit Fraction +15 XP
One-Eighth as a Unit Fraction +15 XP
Two-Thirds as Two Copies of One-Third +15 XP
31
Level 31
0/4
Three-Fourths as Three Copies of One-Fourth +15 XP
Building Any Fraction From Its Unit Fraction +15 XP
Marking 0 and 1 on a Number Line +15 XP
Partitioning the Interval From 0 to 1 Into Equal Parts +15 XP
32
Level 32
0/4
Plotting a Unit Fraction on a Number Line +15 XP
Plotting a Non-Unit Fraction on a Number Line +15 XP
Reading a Fraction From a Marked Number Line +15 XP
Writing 1 as a Fraction +15 XP
33
Level 33
0/4
Writing 2 as a Fraction +15 XP
Writing Any Whole Number as a Fraction Over 1 +15 XP
Plotting Whole Numbers on a Fraction Number Line +15 XP
Recognizing Equivalent Fractions From a Picture +15 XP
34
Level 34
0/4
Recognizing Equivalent Fractions on a Number Line +15 XP
Common Equivalents: One-Half and Two-Fourths +15 XP
Common Equivalents: One-Half and Three-Sixths +15 XP
Common Equivalents: One-Half and Four-Eighths +15 XP
35
Level 35
0/4
Generating an Equivalent Fraction by Splitting Parts +15 XP
Checking Whether Two Fractions Are Equivalent Using a Visual Model +15 XP
Comparing Two Fractions With the Same Denominator Using a Picture +15 XP
Comparing Two Fractions With the Same Denominator Using Numerators +15 XP
36
Level 36
0/4
Ordering Three or More Fractions With the Same Denominator +15 XP
Comparing Two Fractions With the Same Numerator Using a Picture +15 XP
Why Larger Denominators Mean Smaller Parts +15 XP
Comparing Two Fractions With the Same Numerator Using Denominators +15 XP
37
Level 37
0/4
Ordering Three or More Fractions With the Same Numerator +15 XP
Why You Can Only Compare Fractions of the Same Whole +15 XP
Why Fractions of Different-Sized Wholes Cannot Be Directly Compared +15 XP
Solving Word Problems With Fraction Comparison +15 XP
38
Level 38
0/4
Reading an Analog Clock to the Hour +9 XP
Reading an Analog Clock to the Half-Hour +9 XP
Reading an Analog Clock to Five Minutes +9 XP
Reading an Analog Clock to the Minute +9 XP
39
Level 39
0/4
Reading a Digital Clock +15 XP
A.M. and P.M. +15 XP
Finding Elapsed Time in Whole Hours +9 XP
Finding Elapsed Time in Hours and Half-Hours +9 XP
40
Level 40
0/4
Finding Elapsed Time in Hours and Minutes +9 XP
Finding Elapsed Time Across the Hour +9 XP
Finding a Start Time Given Elapsed Time +9 XP
Finding an End Time Given Elapsed Time +9 XP
41
Level 41
0/4
Solving Elapsed Time Word Problems +12 XP
What Liquid Volume Is +15 XP
Measuring Liquid Volume in Liters +15 XP
Estimating Liquid Volume in Liters +12 XP
42
Level 42
0/4
Adding Liquid Volumes +12 XP
Subtracting Liquid Volumes +12 XP
Multiplying a Liquid Volume by a Whole Number +12 XP
Solving Word Problems With Liquid Volume +15 XP
43
Level 43
0/4
What Mass Is +15 XP
Measuring Mass in Grams +12 XP
Measuring Mass in Kilograms +12 XP
Choosing Between Grams and Kilograms for an Estimate +12 XP
44
Level 44
0/4
Adding Masses +12 XP
Subtracting Masses +12 XP
Multiplying a Mass by a Whole Number +12 XP
Solving Word Problems With Mass +15 XP
45
Level 45
0/4
Area as the Space Inside a Shape +15 XP
The Unit Square +15 XP
Measuring Area by Counting Unit Squares +15 XP
Measuring Area in Square Inches +15 XP
46
Level 46
0/4
Measuring Area in Square Centimeters +15 XP
Measuring Area in Square Feet +15 XP
Measuring Area in Square Meters +15 XP
Tiling a Rectangle With Unit Squares +15 XP
47
Level 47
0/4
The Area Formula for a Rectangle +15 XP
Calculating Area Given Whole-Number Side Lengths +15 XP
Finding a Missing Side Length Given Area +15 XP
Why Length Times Width Equals the Count of Unit Squares +15 XP
48
Level 48
0/4
Area of a Square +15 XP
Breaking a Rectangle Into Two Rectangles +12 XP
Using Distribution to Calculate Larger Areas +12 XP
Identifying the Two Rectangles in an L-Shape +12 XP
49
Level 49
0/4
Finding the Area of an L-Shape +12 XP
Finding the Area of a T-Shape +12 XP
Solving Real-World Composite Area Problems +12 XP
What Perimeter Is +12 XP
50
Level 50
0/4
Finding the Perimeter of a Polygon by Adding Sides +12 XP
The Perimeter Formula for a Rectangle +12 XP
Finding a Missing Side Given Perimeter +12 XP
Comparing Perimeter and Area for the Same Rectangle +12 XP
51
Level 51
0/4
Drawing Different Rectangles With the Same Perimeter +12 XP
Drawing Different Rectangles With the Same Area +12 XP
Solving Word Problems With Perimeter +12 XP
Sides of a Polygon +15 XP
52
Level 52
0/4
Vertices of a Polygon +15 XP
Right Angles in Shapes +15 XP
Counting Sides and Vertices +15 XP
What a Quadrilateral Is +15 XP
53
Level 53
0/4
Identifying Rhombuses +15 XP
Identifying Rectangles +15 XP
Identifying Squares +15 XP
Why Every Square Is a Rhombus +15 XP
54
Level 54
0/4
Why Every Square Is a Rectangle +15 XP
Drawing a Quadrilateral That Belongs to None of These Categories +15 XP
Splitting a Rectangle Into 2 Equal Parts +15 XP
Splitting a Rectangle Into 3 Equal Parts +15 XP
55
Level 55
0/4
Splitting a Rectangle Into 4 Equal Parts +15 XP
Splitting a Circle Into Equal Parts +15 XP
Naming Each Part as a Unit Fraction of the Whole +15 XP
Reading a Picture Graph With a Scale of 1 +15 XP
56
Level 56
0/4
Reading a Picture Graph With a Scale Greater Than 1 +15 XP
Reading a Scaled Bar Graph +15 XP
Making a Bar Graph From a Data Set +15 XP
Solving "How Many More" Problems With a Bar Graph +12 XP
57
Level 57
0/4
Solving "How Many Less" Problems With a Bar Graph +12 XP
Solving Multi-Step Problems With a Bar Graph +12 XP
Making a Line Plot From a Whole-Number Data Set +15 XP
Making a Line Plot With Halves +15 XP
58
Level 58
0/4
Making a Line Plot With Quarters +15 XP
Reading a Value Off a Line Plot +15 XP
Measuring a Length to the Nearest Whole Inch +6 XP
Measuring a Length to the Nearest Half Inch +6 XP
59
Level 59
0/4
Measuring a Length to the Nearest Quarter Inch +6 XP
Reading a Four-Digit Number +15 XP
Reading a Five-Digit Number +15 XP
Writing a Four-Digit Number in Expanded Form +15 XP
60
Level 60
0/4
Adding a Four-Digit Number to a Four-Digit Number +15 XP
Subtracting Within 10,000 +15 XP
Multiplying a One-Digit Number by 200, 300, or Higher Hundreds +12 XP
Fractions With Denominator 5 +15 XP
61
Level 61
0/4
Fractions With Denominator 10 +15 XP
Fractions With Denominator 12 +15 XP
What a Factor Is (Intro) +12 XP
What a Multiple Is (Intro) +12 XP