# 2.OA.B.2 Worksheets

#### CCSS.MATH.CONTENT.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."

Our Take: Adding and subtracting within 20 should become quick and easy work for students by the end of second grade. Give students plenty of repetition through various types of worksheets and games to hone this skill.

These worksheets can help students practice this Common Core State Standards skill.

## Worksheets

Snail Fact Families
Worksheet
Snail Fact Families
Kids add, subtract, or use math facts they have committed to memory to fill in the missing numbers in the fact families on this second grade math worksheet.
Math
Worksheet
Addition Puzzle: Impossible Sum
Worksheet
Addition Puzzle: Impossible Sum
This addition puzzle is a great math challenge. Experiment with the number combinations to find the requested sums.
Math
Worksheet
Fact Families
Worksheet
Fact Families
Looking for a worksheet that practices addition and subtraction skills? This printable works with fact families and common denominators.
Math
Worksheet
Electoral Vote
Worksheet
Electoral Vote
See how electoral votes work in the United States presidential election.
Worksheet
By the Numbers!
Worksheet
By the Numbers!
Looking for a fun way to practice your child's addition skills? Go by the numbers with this math riddle worksheet.
Math
Worksheet
Janitor Jane
Worksheet
Janitor Jane
Searching for a fun worksheet that challenges your child's math skills? This printable will get them adding their way through a maze!
Math
Worksheet
Subtraction Facts Review
Worksheet
Subtraction Facts Review
Ensure your third grader has a solid subtraction foundation with this subtraction facts worksheet that's packed with extra practice.
Math
Worksheet
Number Strings
Worksheet
Number Strings
Strengthen your second grader's ability to tackle his addition facts by adding up the number strings, and uncover a fun fact when he's finished.
Math
Worksheet
Thanksgiving Subtraction #3
Worksheet
Thanksgiving Subtraction #3
Children practice subtraction within 20 in this fall-themed math worksheet.
Math
Worksheet
Thanksgiving Subtraction #4
Worksheet
Thanksgiving Subtraction #4
Children practice subtraction within 20 in this fall-themed math worksheet.
Math
Worksheet
Colorful Christmas Math #2
Worksheet
Colorful Christmas Math #2
Santa has left 10 Christmas gifts under the tree. Each present has an addition or subtraction problem for your second grader to solve.
Math
Worksheet
Colorful Christmas Math #3
Worksheet
Colorful Christmas Math #3
Add some color to these Christmas presents in this color-by-number mental math worksheet. Kids will exercise addition and subtraction skills.
Math
Worksheet
Addition Math Puzzles #2
Worksheet
Addition Math Puzzles #2
Your second grader will practice adding up to 50 while building her logic and problem solving skills with these math puzzle boxes.
Math
Worksheet
Worksheet
Practice addition within 10 with this Halloween math workheet!
Math
Worksheet
Worksheet
Practice addition within 10 with this Halloween math workheet!
Math
Worksheet
Worksheet
Practice addition within 10 with this Halloween math workheet!
Math
Worksheet
Worksheet
Practice addition within 10 with this Halloween math workheet!
Math
Worksheet
Worksheet
Practice addition within 20 with this Halloween math workheet!
Math
Worksheet
Halloween Subtraction #1
Worksheet
Halloween Subtraction #1
Practice subtraction within 10 with this Halloween math workheet!
Math
Worksheet
Halloween Subtraction #2
Worksheet
Halloween Subtraction #2
Practice subtraction within 10 with this Halloween math workheet!
Math
Worksheet
Halloween Subtraction #3
Worksheet
Halloween Subtraction #3
Practice subtraction within 20 with this Halloween math workheet!
Math
Worksheet
Halloween Subtraction #4
Worksheet
Halloween Subtraction #4
Practice subtraction within 20 with this Halloween math workheet!
Math
Worksheet
Halloween Subtraction #5
Worksheet
Halloween Subtraction #5
Practice subtraction within 20 with this Halloween math workheet!
Math
Worksheet
Christmas Subtraction
Worksheet
Christmas Subtraction
Ho ho ho! Santa left some colorful presents filled with simple subtraction problems for your second grader to solve.
Math
Worksheet
Christmas Subtraction #2
Worksheet
Christmas Subtraction #2
Stay sharp with subtraction this Christmas. This colorful worksheet lets your second grader review simple subtraction problems to strengthen his math basics.
Math
Worksheet
Christmas Subtraction #3
Worksheet
Christmas Subtraction #3
Have a merry math Christmas! Santa left some colorful presents filled with simple subtraction problems for your second grader to solve.
Math
Worksheet
Christmas Subtraction #4
Worksheet
Christmas Subtraction #4
Enjoy a festive subtraction sheet this winter season! Santa left some simple subtraction problems for your second grader to solve.
Math
Worksheet
Christmas Subtraction #5
Worksheet
Christmas Subtraction #5
Santa has brought colorful presents filled with subtraction problems for your second grader! She'll learn a new math function, and review addition facts.
Math
Worksheet
Worksheet
Put your second grader's math skills to the test with mathematical puzzle boxes. He'll practice doing addition facts in his head, and build logic skills.
Math
Worksheet

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