This page provides sample 2nd Grade Number tasks and games from our 2nd Grade Math Centers eBook.  Try out the samples listed in blue under each Common Core State Standard or download the eBook and have all the 2nd Grade Number, Geometry, Measurement and Data Centers you’ll need for the entire school year in one convenient digital file.  With over 160 easy-prep, engaging centers this resource will simplify your math lesson planning and make hands-on math instruction an integral part of your classroom.
Teaching in a state that is implementing their own specific math standards?  Download our 2nd Grade Correlations document for cross-referenced tables outlining the alignment of each state's standards with the CCSS-M, as well as the page numbers in our 2nd Grade Math Centers eBook related to each standard.

### OPERATIONS AND ALGEBRAIC THINKING

2nd Grade Numbers of the Week (Use for morning work or as homework)

Represent and solve problems involving addition and subtraction

2.OA.A.1 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 To: Result Unknown Word Problems (within 100)
Math Literature Link: Two of Everything
Math Literature Link: The Napping House

Also included in 2nd Grade Math Centers

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

Find Ten
Magic Squares
Sum Search

Also included in 2nd Grade Math Centers

Work with equal groups of objects to gain foundations for multiplication

2.OA.C.3 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.

Even Odd Scoop

Also included in 2nd Grade Math Centers

2.OA.C.4 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.

Roll a Rectangular Array
Making Different Sized Squares

Also included in 2nd Grade Math Centers  ### NUMBER AND OPERATIONS IN BASE TEN

Understand place value

2.NBT.A.1 Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones. Understand the following as special cases:
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, nine hundreds (and 0 tens and 0 ones).

Base 10 Concentration (v.2)

Also included in 2nd Grade Math Centers

2.NBT.A.2 Count within 1000; skip count by 5s,10s, and 100s.

Counting Collections

Also included in 2nd Grade Math Centers

2.NBT.A.3 Read and write numbers to 1000 using base-ten notation, number names, and expanded form.

Roll 3 Digits
Numeral Writing Barrier Game

Also included in 2nd Grade Math Centers

2.NBT.A.4 Compare two three-digit numbers based on meanings of the hundreds, tens, and ones digits, using >, =, and < symbols.

Comparing 3 Digit Numbers
Place Value Challenge (v.1)

Also included in 2nd Grade Math Centers Use place value understanding and properties of operations to add and subtract

2.NBT.B.5 Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

Doubles Plus One (v.2)

Also included in 2nd Grade Math Centers

2.NBT.B.6 Add up to four two-digit numbers using strategies based on place value and properties of operations.

Make 100

Also included in 2nd Grade Math Centers

2.NBT.B.7 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.

Also included in 2nd Grade Math Centers

2.NBT.B.8 Mentally add 10 or 100 to a given number 100-900 and mentally subtract 10 or 100 from a given number 100-900.

Add 10 on a Number Line (3 digit)
Subtract 10 and 100

Also included in 2nd Grade Math Centers

2.NBT.B.9 Explain why addition and subtraction strategies work, using place value and the properties of operations.

Included in 2nd Grade Math Centers  