# 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

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
Electoral Vote
Worksheet
Electoral Vote
See how electoral votes work in the United States presidential election.
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
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
Worksheet
This addition puzzle is a great math challenge. Experiment with the number combinations to find the requested sums.
Math
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

## Lesson Plans

Lesson plan
Encourage your students to take part in some friendly competition with this game that has students practice their addition skills with flashcards.
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.
Math
Lesson plan
Lesson plan
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.
Math
Lesson plan

## Workbooks

No workbooks found for this common core node.

## Games

Ski Race: Subtraction Within 20
Game
Ski Race: Subtraction Within 20
Kids tackle subtraction to 20 in this silly math game.
Math
Game
Game
Kids must move fast to find addition pairs that total a target sum within 20.
Math
Game
Game
Let's have a ski race while practicing addition to 20 in this fast-paced learning adventure!
Math
Game
Game
To help Roly move through obstacles, kids learn a regrouping strategy to make addition within 20 easily!
Math
Game
Game
Math
Game
Match: Subtraction Facts within 20
Game
Match: Subtraction Facts within 20
Match up subtraction facts to 20 in this engaging math game for second graders!
Math
Game

## Exercises

Exercise
Limit addition to within 20 for students new to two digit addition in this engaging exercise.
Math
Exercise