Add and subtract within 20
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Making Ten Cut and Paste Worksheet
A cut and paste worksheet to practice finding the missing addend when making ten.
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Doubles Plus One - Worksheet
Practice the doubles plus one addition strategy with this one-page worksheet.
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Change It! – Addition to 20 Hands-On Activity
Practice addition to 20 by rearranging the parts of whole numbers into different combinations with this hands-on math activity.
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Counting On Game
Engage your students with this fun and colorful counting on game that gives your students practice with the “counting on” addition strategy.
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Making Ten Activity
Practice making 10 using objects, pictorial models, and number sentences with this activity mat.
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Addition Strategies to 20 Work Mat
Practice using a variety of addition strategies to add numbers up to 20.
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Addition within 20 Interactive Resource
Practice solving one-digit and two-digit addition problems using a variety of addition strategies with this interactive activity.
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Double Dinos - Using Doubles Facts to Add Near Doubles Worksheet
Practice the “near doubles” addition strategy to solve addition problems to 20.
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Turnaround Facts Flip Flop Task Cards
Develop number sense with addition turnaround facts to 20 with these cute flip flop fact task cards.
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Number Talks - Making Ten Task Cards
Build number sense skills with this set of 20 task cards.
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Subtraction Strategies - Ten Frame Printable Bingo Game
Practice using ten frames to subtract single-digit numbers in a whole class bingo game.
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Number Bonds Subtraction - Worksheet
Practice subtraction using number bonds with differentiated number bond worksheets.
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Addition and Subtraction Fact Families Teaching Presentation
Use this 19-slide editable slide deck when introducing addition and subtraction fact families to your students.
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Counting On Bingo
Engage your students with a whole class bingo game while using the counting-on strategy to add within 20.
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Bump! Addition to 10 Game
A board game to practice addition facts to 10.
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Friends of 20 – Addition Match-up Activity
A set of 40 matching cards to explore the number combinations of 20.
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MLK Day Hidden Message - Lower Grades
Practice addition and subtraction facts within 20 to uncover a meaningful quote.
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Missing Addend Picture Puzzle – Level 1
Solve the missing addition sentence by matching the addend with its equation, completing the puzzle.
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Friends of... 1 to 10 - Black and White Version
A set of 10 posters showing the different combinations to make the numbers 1 to 10.
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Addition Up To 20 - Owl Matchup Cards
A set of matchup cards to practice adding within 20.
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Addition Up To 20 - Monster Matchup Cards
A set of matchup cards to practice adding within 20.
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Doubles Minus One - Worksheet
Practice the doubles minus one addition strategy with this one-page worksheet.
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Count on Facts Board Game: Counting On 1
Provide your early learners with this count on facts board game to engage them as they learn to add by counting on one.
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Using Doubles to Subtract Board Game
Practice using doubles to subtract with this fun, apple-themed board game.
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Near Doubles Game: Wizard's Walk
Break out our near doubles game “Wizard’s Walk” for an engaging way to practice the near doubles strategy.
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Adding Doubles Board Game
Play our adding doubles board game to give your students a chance to practice their addition fact fluency.
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Addition Strategy: Counting On – Worksheet
Practice the “counting on” addition strategy to solve addition problems to 20.
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Simple Addition Riddle Worksheet
Download this simple addition worksheet to provide your students with practice adding one- and two-digit numbers.
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My Life in Numbers Worksheet
Use this numbers worksheet as a means of student introductions early in a new school year.
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Combinations of 10 and 20 Posters
Easily recognize combinations of 10 and combinations of 20 with this visual poster set.
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Feed the Pumpkins - 1st Grade Subtraction Worksheet
Feed the pumpkins and practice subtraction to twenty with a Halloween subtraction worksheet.
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Rainbow Number Facts (Making 10) - Board Game
Practice the addition strategy of making ten with this board game.