CCSS.MATH.CONTENT.1.OA.C.6
Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 - 4 = 13 - 3 - 1 = 10 - 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).
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Roll It! Operations Game
Use this fun game to practice all four operations and/or order of operations.
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Math Graphic Organizers - Printable Work Mats
Practice working on specific math concepts with our set of 5 printable math graphic organizers.
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Number Talks - Fluency to 20 Task Cards
Build number sense skills with this set of 24 task cards.
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Counting On: Addition Strategy Worksheet
Practice the “counting on” addition strategy to solve addition problems to 20.
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Doubles Plus One - Grid Game
A fun game to help students practice the doubles plus one addition strategy.
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Mental Math Addition Posters
Use this set of addition posters in your classroom when teaching different mental math strategies.
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Fact Family Find and Flip - Addition and Subtraction Up to 20
Addition and subtraction game cards demonstrating the relationship between fact families.
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Cover Up! - Addition Facts Game
Develop a love of addition facts with this multiplayer Valentine’s Day board game.
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Making 10 Match-Up Activity
A set of match-up cards to practice the addition strategy Making 10.
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Add and Reveal PowerPoint – Addition Practice
A PowerPoint for students to interact with when practicing addition facts.
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Subtraction Using Picture Models Worksheet
Practice subtracting numbers to 12 using picture models with a printable subtraction worksheet.
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Subtraction with Ten Frames - Worksheet
Model and subtract numbers to twenty using ten frames with a handy ten-frame subtraction worksheet.
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Fact Family Math Blast Off - Addition and Subtraction
Demonstrate an understanding of addition and subtraction fact families with a fun cut and sort activity.
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Number Talks - Ten Frame Task Cards
Build number sense skills with this set of 30 ten and double ten frame math talk task cards.
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Subtraction within 20 - Number Bond Worksheet
Practice subtraction strategies, including number bonds and picture models, with a printable subtraction worksheet.
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Exploring Subtraction Strategies Instructional Slide Deck
Explore and teach multiple subtraction strategies with an instructional slide deck
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Doubles Plus 1 - Game Boards
30 game boards to use when practicing the doubles plus one strategy with single and double-digit numbers.
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Doubles Plus One - Dice Roll Worksheet
A worksheet to help students practice the doubles plus one addition strategy.
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Doubles Minus One - Worksheet
A worksheet to help students practice the doubles minus one addition strategy.
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Near Doubles - Number Facts Board Game
A fun, hands-on game students can play to practice the 'Near Doubles' addition strategy.
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Doubles Subtraction - Number Facts Board Game
A fun, hands-on game students can play to practice the subtraction strategy 'Doubles Subtraction'.
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Counting On 1 - Number Facts Board Game
A fun, hands-on game students can play to practice the 'Counting On 1' addition strategy.
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Dinosaur Math - Addition and Subtraction (Version 2)
Solve the addition and subtraction number sentences to color the dinosaur.
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Color by Numbers - Adding Single-Digit Numbers
A set of 5 color by number activity pages to use when practicing addition facts.
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Ladybug Addition and Subtraction Activity
A fun and simple adding and subtracting activity.
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Rainbow Number Facts (Making 10) - Board Game
A fun, hands-on board game to reinforce students' understanding of making 10.
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Grade 1 Daily Warm-Up – PowerPoint 1
An 82-slide PowerPoint presentation containing a variety of quick warm-up activities.
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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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Making Ten Activity
An activity to practice making 10 using objects, pictorial models, and number sentences.
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Number Talks - Subitizing Task Cards
Build number sense skills with this set of 30 subitizing task cards.