Math 2

A full year of 2nd-grade math: numbers to 1,000, adding and subtracting 3-digit numbers with regrouping, measuring, time, money, arrays and skip-counting, shapes, graphs, and halves, thirds and fourths.

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180 lessons

One a day for a school year

10 units

Each opens to its lessons

A math fair project

Own problems, poster and sharing

Standards

Common Core Grade 2 math

What's taught, unit by unit

1
Place value to 1,000Days 1–10
Hundreds, tens and ones, reading and writing 3-digit numbers, expanded form, comparing and ordering them, skip-counting by 100s and finding 10 more or 10 less in your head.
- 1 · Welcome to Second Grade Math!
- 2 · Hundreds, Tens, and Ones
- 3 · Reading and Writing 3-Digit Numbers
- 4 · Expanded Form
- 6 · Comparing 3-Digit Numbers
- 7 · Ordering 3-Digit Numbers
- 8 · Skip Counting by 100s
- 9 · Mental Math: 10 More, 10 Less
Plus 2 review days, not listed.
2
Adding and subtracting 3-digit numbersDays 11–30
Adding and subtracting with and without regrouping, one- and two-step word problems, choosing the right operation, adding or subtracting 10 and 100 mentally, doubles, and checking answers with the opposite operation.
- 11 · Adding Two-Digit Numbers: Review
- 12 · Adding Three-Digit Numbers (No Regrouping)
- 13 · Adding with Regrouping in the Ones Place
- 14 · Adding with Regrouping in the Tens Place
- 16 · Subtracting Two-Digit Numbers: Review
- 17 · Subtracting Three-Digit Numbers (No Regrouping)
- 18 · Subtracting with Regrouping in the Ones Place
- 19 · Subtracting with Regrouping in the Tens Place
- 21 · Word Problems: Adding 3-Digit Numbers
- 22 · Word Problems: Subtracting 3-Digit Numbers
- 23 · Two-Step Word Problems
- 24 · Choosing the Right Operation
- 26 · Mental Math: Adding 10 and 100
- 27 · Mental Math: Subtracting 10 and 100
- 28 · Doubles and Near Doubles Review
- 29 · Checking Your Answer with the Opposite Operation
Plus 4 review days, not listed.
3
Length and timeDays 31–45
Measuring in inches, feet, centimeters and meters, estimating, comparing and ordering lengths, comparing weights, then telling time to the nearest 5 minutes, AM and PM, and reading a calendar.
- 31 · Measuring in Inches
- 32 · Measuring in Feet
- 33 · Measuring in Centimeters
- 34 · Comparing and Estimating Length
- 36 · Comparing and Ordering Lengths
- 37 · Comparing Weights
- 38 · Measuring in Centimeters and Meters
- 39 · Estimating Length
- 41 · Telling Time to the Nearest 5 Minutes
- 42 · Which Time Comes First?
- 43 · AM and PM
- 44 · Reading a Calendar
Plus 3 review days, not listed.
4
Money and graphsDays 46–55
Coins, dollars, counting dollars and cents together, making change, then picture graphs, bar graphs with a scale, line plots and comparing data.
- 46 · Money Review: Coins
- 47 · Dollars
- 48 · Counting Dollars and Cents Together
- 49 · Making Change
- 51 · Picture Graphs Review
- 52 · Bar Graphs with a Scale
- 53 · Line Plots
- 54 · Comparing Data
Plus 2 review days, not listed.
5
Arrays, skip-counting, equal groups and shapesDays 56–80
Arrays and repeated addition, skip-counting by 2s, 5s, 10s and 100s, equal-group problems, money word problems, then polygons, 3D shapes, faces and edges, partitioning shapes and a second round of picture and bar graphs.
- 56 · Arrays and Repeated Addition Review
- 57 · Arrays: Repeated Addition in Rows and Columns
- 58 · Skip Counting by 2s
- 59 · Skip Counting by 5s
- 61 · Skip Counting by 10s
- 62 · Skip Counting by 100s from Any Number
- 63 · Equal Groups: Finding the Total
- 64 · More Practice Telling Time to the Nearest 5 Minutes
- 66 · Counting Money: Coins Review
- 67 · Money Word Problems
- 68 · Arrays and Equal Groups Word Problems
- 69 · Addition Facts: Order Doesn't Matter
- 71 · 2D Shapes Review and Attributes
- 72 · Naming Polygons
- 73 · 3D Shapes Review
- 74 · Partitioning Shapes into Equal Parts
- 76 · Comparing 3D Shapes
- 77 · Defining and Non-Defining Attributes
- 78 · Picture Graphs
- 79 · Bar Graphs
Plus 5 review days, not listed.
6
Regrouping, word problems, measuring and patternsDays 81–100
More 3-digit adding and subtracting with regrouping, adding money amounts, half past and quarter past, adding three 2-digit numbers, two-step word problems, measuring again, even and odd, and skip-counting patterns.
- 81 · Adding 3-Digit Numbers with Regrouping
- 82 · Subtracting 3-Digit Numbers with Regrouping
- 83 · Adding and Subtracting Money Amounts
- 84 · More Time Practice: Half Past and Quarter Past
- 86 · More Two-Step Word Problems: One Step at a Time
- 87 · Adding Three Two-Digit Numbers
- 88 · Explaining Your Addition Strategy
- 89 · Word Problems: Adding and Subtracting Within 1000
- 91 · Length: Measuring in Inches
- 92 · Length: Measuring in Centimeters
- 93 · Comparing Measurements
- 94 · Measurement Word Problems
- 96 · Repeated Addition and Equal Groups
- 97 · Multi-Step Addition and Subtraction Word Problems
- 98 · Even and Odd Numbers Review
- 99 · Skip-Counting Patterns
Plus 4 review days, not listed.
7
Halves, thirds and fourthsDays 101–110
Splitting shapes into 2, 3 and 4 equal parts, seeing that more parts means smaller pieces, fair shares of food, and the same fraction looking different in different shapes.
- 101 · Equal Parts: Halves
- 102 · Equal Parts: Thirds
- 103 · Equal Parts: Fourths
- 104 · More Parts Means Smaller Pieces
- 106 · Fair Shares: Dividing Food Equally
- 107 · Equal Shares, Different Shapes
- 108 · Whole vs. Equal Parts
- 109 · Fraction Vocabulary: Half, Third, Fourth
Plus 2 review days, not listed.
8
Hundreds, multi-step problems and a measurement projectDays 111–125
Counting to 1,000, adding and subtracting whole hundreds, choosing the operation, two-operation word problems, checking work, and a five-day project where the child estimates, measures and compares real objects.
- 111 · Counting to 1000
- 112 · Adding Hundreds
- 113 · Subtracting Hundreds
- 114 · Adding and Subtracting Hundreds Word Problems
- 116 · Mixed Word Problems: Choosing the Operation
- 117 · Multi-Operation Word Problems
- 118 · Checking Your Work
- 119 · Multi-Step Problem Practice
- 121 · Measurement Project: Planning
- 122 · Measurement Project: Estimating
- 123 · Measurement Project: Measuring
- 124 · Measurement Project: Comparing Estimates
Plus 3 review days, not listed.
9
Shapes and grids, cumulative practice, games and real lifeDays 126–150
Building shapes with given properties, counting squares in rows and columns, then mixed review of place value, operations, measurement, time and money, plus games, cooking, budgeting, sports and travel math.
- 126 · Building Shapes with Specific Properties
- 127 · Composing Larger Shapes
- 128 · Rows and Columns: Counting Squares in a Grid
- 129 · Building Rectangles with Squares
- 131 · Cumulative Practice: Place Value
- 132 · Cumulative Practice: Addition and Subtraction
- 133 · Cumulative Practice: Arrays and Skip Counting
- 134 · Cumulative Practice: Equal Parts
- 136 · Cumulative Practice: Length Measurement
- 137 · Cumulative Practice: Time
- 138 · Cumulative Practice: Money
- 139 · Cumulative Practice: Geometry and Data
- 141 · Math Game: Skip-Counting Race
- 142 · Money Shopping Game
- 143 · Math Around the House Project
- 144 · Cooking with Math: Recipes and Equal Shares
- 146 · Building Budget Math
- 147 · Sports and Math: Scores and Stats
- 148 · Travel Math: Distances
- 149 · Building Projects: Math for Construction
Plus 5 review days, not listed.
10
Challenges, review, final project and celebrationDays 151–180
Superstar challenge days, cumulative review, a look ahead to 3rd grade, puzzles, a five-day project where the child writes and solves their own problems for a math fair, trivia days, a look back and awards. Mostly review.
- 151 · Math Superstar Challenge: Place Value
- 152 · Math Superstar Challenge: Addition and Subtraction
- 153 · Math Superstar Challenge: Arrays and Money
- 154 · Math Superstar Challenge: Equal Parts and Geometry
- 156 · Math Superstar Challenge: Measurement and Money
- 157 · Math Superstar Challenge: Time and Data
- 158 · Math Superstar Challenge: Word Problems
- 159 · Math Superstar Challenge: Mental Math
- 161 · Cumulative Practice: All Operations Mixed
- 162 · Cumulative Practice: Number Patterns
- 163 · Cumulative Practice: Shapes and Equal Parts
- 164 · Cumulative Practice: Real-World Math
- 166 · Looking Ahead to Third Grade Math
- 167 · Teach Someone Else
- 168 · Math Puzzle Day
- 169 · Math Around the World
- 171 · Final Math Project: Planning
- 172 · Final Math Project: Creating Problems
- 173 · Final Math Project: Solving and Checking
- 174 · Final Math Project: Making a Poster
- 175 · Math Fair Day: Sharing Your Project
- 176 · Fun Math Trivia Day
- 177 · Math Trivia Challenge
- 178 · Looking Back: My Math Journey
- 179 · Math Superstar Awards
- 180 · Math 2 Celebration: You Did It!
Plus 4 review days, not listed.

By the end of the year, your child can

Read, write, compare and order numbers up to 1,000
Add and subtract 3-digit numbers with regrouping
Solve one- and two-step word problems and check the answer
Measure length in inches, feet, centimeters and meters, and compare measurements
Tell time to the nearest 5 minutes and count coins and bills
Find totals with arrays and skip-counting, and split shapes into halves, thirds and fourths

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Other 2nd Grade subjects: Reading 2 · Writing 2 · Science 2 · History 2