2nd Grade Common Core Math Matrix

A continuing guide with activities for 2nd Grade Common Core Math. This guide will be updated as more articles, guides, interactives, games and printables are added to Fuel the Brain.

Seasonal Activities

Operations and Algebraic Thinking

Represent and solve problems involving addition and subtraction.

Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem


Add and subtract within 20.

Fluently add and subtract within 20 using mental strategies.2 By end of Grade 2, know from memory all sums of two one-digit numbers.

Math Match
Choose equations level for memory style practice
Ace of Numbers
Missing addend game
Fact Worms
Doubles, near doubles, + 10 

Double Ten Frame
Printable with double ten frames to support combinations of 20 story problems 

Work with equal groups of objects to gain foundations for multiplication.

Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.

Jelly Diving
Students identify numbers as being even or odd Goes beyond 20

Even/Odd Assessment
Printable with pictures to support

Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends


Number and Operations in Base Ten

Understand place value.

Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases

 A Lucky Place
Students identify place value up to thousands
Weight Watch
Students build numbers using groups of ten, five, and ones (groups of two and three)

a. 100 can be thought of as a bundle of ten tens - called a -hundred.


b. The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).


Count within 1000; skip-count by 5s, 10s, and 100s.

Line Dry
Complete number patterns

Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.

Expanded Shells
Math station where students build three digit numbers

Compare two three-digit numbers based on meanings of the hundreds, tens, and ones digits, using >, =, and < symbols to record the results of comparisons.


Comparison Shoot Out
Level 1-compares two-digit numbers

Use place value understanding and properties of operations to add and subtract.

Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

Math Madness
Students complete math equations in a game format, choosing from addition, subtraction, or multiplication.

Hundred Board Design
Addition/subtraction prompts to create hundred board design

Add up to four two-digit numbers using strategies based on place value and properties of operations.


Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.

Math Booster
In a driving game, students compose and decompose numbers.

Mentally add 10 or 100 to a given number 100-900, and mentally subtract 10 or 100 from a given number 100-900.


Explain why addition and subtraction strategies work, using place value and the properties of operations.


Measurement and Data

Measure and estimate lengths in standard units.

Measure the length of an object by selecting and using appropriate tools such as rulers, yardsticks, meter sticks, and measuring tapes.


Measure the length of an object twice, using length units of different lengths for the two measurements; describe how the two measurements relate to the size of the unit chosen.


Estimate lengths using units of inches, feet, centimeters, and meters.

Inchy Picnic
Students use an interactive ruler or estimation to measure around a maze of anthills.

Tiling Around the Room
This is a great activity for transitioning students from nonstandard to standard measurement.  Students use one-inch tiles to measure items found in a typical classroom.

One Inch Scavenger Hunt
Help students create benchmarks for one inch with this activity
Measurement Tic Tac Toe
Use this activity when helping students choose appropriate units of measurement

Measure to determine how much longer one object is than another, expressing the length difference in terms of a standard length unit.

Less and More Scavenger Hunt
Find objects that are longer before measuring and finding difference

Relate addition and subtraction to length.

Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same units, e.g., by using drawings (such as drawings of rulers) and equations with a symbol for the unknown number to represent the problem.


Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1, 2, ..., and represent whole-number sums and differences within 100 on a number line diagram.


Work with time and money.

Tell and write time from analog and digital clocks to the nearest five minutes, using a.m. and p.m.

Time Tunnel
Half hour, quarter hour, five minute, and minute increments
Time Keeper
Students choose the clock with the correct time; four different levels of difficulties

Time to 15 minutes
Flip-Flop Time Match-30 Minutes
File folder game
Flip-Flop Time Match-5 Minutes
File folder game

Solve word problems involving dollar bills, quarters, dimes, nickels, and pennies, using $ and ¢ symbols appropriately.

Bank It
Reinforce coin values and addition of mixed coins with this interactive

Represent and interpret data.

Generate measurement data by measuring lengths of several objects to the nearest whole unit, or by making repeated measurements of the same object. Show the measurements by making a line plot, where the horizontal scale is marked off in whole-number units.


Draw a picture graph and a bar graph (with single-unit scale) to represent a data set with up to four categories. Solve simple put-together, take-apart, and compare problems4 using information presented in a bar graph.



Reason with shapes and their attributes.

Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces.5 Identify triangles, quadrilaterals, pentagons, hexagons, and cubes.


Partition a rectangle into rows and columns of same-size squares and count to find the total number of them.


Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape.