2.OA.B.2 Worksheets, Workbooks, Lesson Plans, and Games
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
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.
2nd grade
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!
2nd grade
Math
Worksheet
Electoral Vote
Worksheet
Electoral Vote
See how electoral votes work in the United States presidential election.
2nd grade
Reading & Writing
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.
2nd grade
Math
Worksheet
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.
1st grade
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.
2nd grade
Math
Worksheet
Lesson Plans
Addition: Over in a Flash
Lesson plan
Addition: Over in a Flash
Encourage your students to take part in some friendly competition with this game that has students practice their addition skills with flashcards.
1st grade
Math
Lesson plan
What's the Difference?
Lesson plan
What's the Difference?
Give your students a great basis in mathematics with this lesson that has them use a number line to find differences for basic subtraction facts.
2nd grade
Math
Lesson plan
Adding Within 20
Lesson plan
Adding Within 20
This scaffolded EL lesson will help your students fluently add within 20, while reinforcing parts of a whole. Use as a pre-lesson for Addition: Over in a Flash, or as a stand alone activity.
2nd grade
Math
Lesson plan
Workbooks
No workbooks found for this common core node.
Games
Bubble Buster: Addition to 20
Game
Bubble Buster: Addition to 20
Kids must move fast to find addition pairs that total a target sum within 20.
1st grade
Math
Game
Ski Race: Subtraction Within 20
Game
Ski Race: Subtraction Within 20
Kids tackle subtraction to 20 in this silly math game.
2nd grade
Math
Game
Bubble Buster: Addition Within 20
Game
Bubble Buster: Addition Within 20
Kids add to different target numbers, and must be quick; the balls are dropping fast!
1st grade
Math
Game
Ski Racer: Addition to 20
Game
Ski Racer: Addition to 20
Let's have a ski race while practicing addition to 20 in this fast-paced learning adventure!
2nd grade
Math
Game
Roadblock: Addition Within 20
Game
Roadblock: Addition Within 20
To help Roly move through obstacles, kids learn a regrouping strategy to make addition within 20 easily!
1st grade
Math
Game
Match Addition Facts to 20
Game
Match Addition Facts to 20
Help second graders learn about addition facts to 20 in this online matching activity.
2nd grade
Math
Game
Exercises
Addition Facts Within 20
Exercise
Addition Facts Within 20
Limit addition to within 20 for students new to two digit addition in this engaging exercise.
3rd grade
Math
Exercise
