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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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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Addition to 20 Activity - Winter Math Puzzle for 1st Grade
Practice addition facts up to 20 with a printable winter math puzzle for kindergarten and first-grade students.
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Addition Pizza Near Doubles Task Cards
Practice quick recall of near doubles facts with this Addition Pizza task card activity.
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Sunflower Subtraction Strategies Interactive
Practice using the ten-frame subtraction strategy with a fun self-checking interactive activity.
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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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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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Secret Code Number Line - Worksheet
Crack the number line code with five number line codebreaker worksheets to practice number identification, addition, and subtraction.
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Making Ten Memory Game
Practice making ten using ten frames with this fun memory game.
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Build It! Decomposing Numbers – Task Cards
Practice decomposing numbers with this activity that has students splitting numbers into parts.
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Counting On with Number Bonds – Worksheet
Begin from the larger number and count on to find the total with this worksheet.
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Fall Math - Addition to 10 Task Cards
Practice addition up to 10 with this set of 20 fall-themed task cards.
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Addition Strategies: Make a Ten Worksheet
A 2-page worksheet that uses ten frames to model the “making ten” addition strategy.
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Addition Strategies: Base-Ten Blocks Worksheet
Practice using the strategy of using base-10 blocks and regrouping to find the sum.
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Addition Strategy - Decompose, Then Make 10 Worksheet
Build addition strategies using digits 1-10 with this two-page decomposing numbers worksheet.
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Addition Strategy - Counting On Worksheet
Solve addition problems in this 2-page Counting On Addition Worksheet.
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Tens Frame - Addition and Subtraction Match-Up Activity
Build addition and subtraction skills with two tens frame matching games.
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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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Subtraction Dog – Worksheet
Practice subtraction facts with this set of differentiated worksheets.
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Addition Worm – Worksheet
A set of differentiated addition worksheets.
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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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Ladybug Addition and Subtraction Activity
A fun and simple adding and subtracting activity.
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Doubles Minus One - Worksheet
Practice the doubles minus one addition strategy with this one-page worksheet.
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Doubles Plus One - Grid Game
Practice the doubles plus one addition strategy with this dice game.
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Addition Fact Timed Tests & Trackers
Assess and track addition fact fluency with a printable Math Drill Worksheet pack for addition facts.
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Easter Addition Coloring Pages (Differentiated)
Grab a fun set of Easter Addition Coloring pages to help your little learners practice adding 1 and 2-digit numbers without regrouping.
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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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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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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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Friends of 10 Addition Poster Bundle
Print the ultimate Friends of 10 poster bundle with 10 printable classroom posters designed to show students how different combinations of numbers connect to make the same number.
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Combinations of 10 and 20 Posters
Easily recognize combinations of 10 and combinations of 20 with this visual poster set.