Common Core State Standards
Use place value understanding and properties of operations to add and subtract
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resources for those 'aha' moments
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Addition and Subtraction Word Problem Task Cards (Numbers 1-50)
Use a range of addition and subtraction strategies to solve twenty word problems that contain numbers 1–50.
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Adding Four 2-Digit Numbers Task Cards
Practice adding four 2-digit numbers together with this set of 16 task cards.
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2-digit + 1-digit Task Cards
Practice adding 2-digit and 1-digit numbers with this set of 18 number sentence task cards.
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Adding 2-Digit Numbers Task Cards
Practice adding 2-digit numbers with this set of 18 number sentence task cards.
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Subtracting 2-Digit Numbers Task Cards
Practice 2-digit subtraction with this set of 18 task cards.
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2-Digit + 1-Digit Numbers Addition Worksheet
Practice addition involving 2- and 1-digit numbers with this drill and practice worksheet.
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Adding 2-Digit Numbers Worksheet
Practice 2-digit addition with regrouping with this drill and practice worksheet.
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Subtracting 2-Digit Numbers Worksheet
Practice 2-digit subtraction with regrouping with this drill and practice worksheet.
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What's Missing? - 100 More, 100 Less Task Cards
Find numbers 100 more or 100 less than a given number up to 4 digits with this set of 20 task cards.
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What's Missing? - Ten More, Ten Less Task Cards
Find numbers ten more or ten less than a given two- or three-digit number with this set of 20 task cards.
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Missing Addend Picture Puzzle – Level 3
Solve the missing addition sentence by matching the addend with its equation, completing the puzzle.
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Missing Addend Picture Puzzle – Level 2
Solve the missing addition sentence by matching the addend with its equation, completing the puzzle.
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100 More , 100 Less Match-Up - Three-Digit Numbers
Match 3-digit number cards to find pairs that are 100 more or 100 less of each other.
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Addition to 10 Modeling Mats
Familiarize students with adding single-digit numbers using this set of practice mats.
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Ten More, Ten Less Match-Up - Two-Digit Numbers
Identify ten more or ten less of a given 2-digit number with this set of 36 match up cards
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Ten More, Ten Less Match-Up - Three-Digit Numbers
Identify ten more or ten less of a given 3-digit number with this set of 36 match up cards.
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Ten More, Ten Less Worksheet
Practice or review adding and subtracting 10 from a given number.
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One Hundred More, One Hundred Less Within 999 - Cut and Paste Worksheet
Add and subtract 100 from a given three-digit number in this cut-and-paste worksheet.
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More and Less Worksheet
Practice adding and subtracting 10 and 100 to a three-digit number.
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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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Subtraction Algorithm PowerPoint Presentation
An engaging subtraction algorithm teaching presentation.
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Addition Algorithm PowerPoint Presentation
An animated teaching presentation focused on the addition algorithm.
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Ten More, Ten Less Within 999 - Cut and Paste Worksheet
Practice adding and subtracting 10 from a given 3-digit number in this cut-and-paste worksheet.
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Ten More, Ten Less Task Cards
Practice identifying 10 more and 10 less than a given number with our set of 24 task cards.
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Ten More, Ten Less Dominoes
Practice adding ten more or subtracting ten from a particular number with a set of 27 dominoes.
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Roll and Color Worksheet - Ten More, Ten Less
An interactive worksheet to practice finding the number that is 10 more and 10 less than a given number.
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Addition and Subtraction Minute Math Booklet
A math warm-up booklet with ten pages of addition and subtraction questions.
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Addition Match-Up Puzzles
A set of 15 match-up cards to scaffold work with addition word problems.
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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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The Mathematical Easter Egg Hunt
A differentiated Easter egg hunt activity for mathematics.
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Math Mazes - Addition and Subtraction
A set of puzzling mazes that require addition and subtraction skills to solve.