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
Colorful Christmas Math #13
Worksheet
Colorful Christmas Math #13
Your child can exercise addition and subtraction skills at Christmas time with this mental math worksheet. It also includes a bonus coloring exercise.
2nd Grade
Math
Worksheet
Colorful Christmas Math #14
Worksheet
Colorful Christmas Math #14
Do some Christmas coloring in this addition and subtraction math worksheet. Kids will fill in missing colors in Santa's presents as they solve math problems.
2nd Grade
Math
Worksheet
Colorful Christmas Math #15
Worksheet
Colorful Christmas Math #15
Don't get left behind in math class this winter break! Help your little one review her addition and subtraction math facts with a fun coloring activity.
2nd Grade
Math
Worksheet
Colorful Christmas Math #16
Worksheet
Colorful Christmas Math #16
Each Christmas gift in this math and coloring worksheet contains an addition or subtraction problem that helps your child crack the color 'code.'
2nd Grade
Math
Worksheet
Colorful Christmas Math #17
Worksheet
Colorful Christmas Math #17
There are 10 gifts under the Christmas tree, but they're missing their colors. Your child will use his math and creative skills to color them in this worksheet.
2nd Grade
Math
Worksheet
Colorful Christmas Math #18
Worksheet
Colorful Christmas Math #18
These Christmas presents are missing some color! Challenge your child to review her addition and subtraction math facts by solving the equations in these gifts.
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 code.
Games
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
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 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 Set 2
Game
Match Addition Facts to 20 Set 2
Match each addition fact to its answer in this online game!
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
