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.
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Compensation Strategy for Addition Interactive Slide Deck
Teach your students to use the compensation strategy for addition with an interactive teaching slide deck.
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Rainbow Number Facts (Making 10) - Board Game
Practice the addition strategy of making ten with this board game.
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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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Mental Math – Subtraction Flashcards
Build up your students' mental math skills with a set of 36 subtraction flashcards using one- and two-digit numbers.
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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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Subtraction Using Base 10 Blocks - Worksheet
Subtract two-digit numbers using base-10 blocks with a printable subtraction worksheet.
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Jump Strategy for Subtraction – Interactive Teaching Slides
Teach your students to subtract two-digit numbers using the jump strategy with an instructional teaching presentation.
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Mental Math Subtraction Printable Posters
Use this set of subtraction posters in your classroom when teaching different mental math strategies.
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Decorate a Pumpkin - Halloween Addition Game
Practice finding sums up to 12 with this fun Halloween Math Game!
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Color by Number – Repeated Addition
An engaging activity to prepare students for understanding the concept of multiplication.
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Addition Strategies Worksheet
A worksheet to use when reviewing different addition strategies.
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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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Making Ten Cut and Paste Worksheet
A cut and paste worksheet to practice finding the missing addend when making ten.
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Hundreds Chart Mystery Picture - Addition Task Cards
Practice adding single and double-digit numbers in your classroom with this set of 32 picture reveal task cards.
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Open-ended Math Problem Solving - Grades 1, 2, and 3 (Task Card Version)
A set of 20 open-ended problem solving task cards covering a range of mathematical concepts.
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Open-Ended Math Problem Solving - Grades 1, 2, and 3 (PowerPoint Version)
A PowerPoint with 20 open-ended problem solving questions covering a range of mathematical concepts.
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Doubles - Number Facts Board Game
Practice the doubles addition strategy with this board game.
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Doubles Plus One - Worksheet
Practice the doubles plus one addition strategy with this one-page worksheet.
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Doubles Minus One - Grid Game
Practice the doubles minus one addition strategy with this dice game.
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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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Combinations of 10 and 20 Posters
Easily recognize combinations of 10 and combinations of 20 with this visual poster set.
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Dominate the Dragon – Mental Math Worksheets
Capture your students' interest in math drills for all four operations with these fun dragon-themed differentiated math worksheets.
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Spooky Subtraction - 3rd Grade Halloween Math Game
Practice triple-digit subtraction with regrouping with an exciting 3rd Grade Halloween Math Game.
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Spooky Sums Tarsia Puzzle - 3 Digit Addition
Practice three-digit addition skills with a Halloween pumpkin tarsia puzzle.
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Subtraction Tarsia Worksheets- Math Puzzles
Print a set of 7 Tarsia puzzles to practice solving single-to-multi-digit subtraction problems.
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Decomposing Numbers - Subtraction Teaching Slides
Challenge students to decompose numbers to mentally solve two-digit subtraction problems with a teaching presentation.
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Making Monsters Subtraction - Halloween Math Worksheet
Have some spooky subtraction fun with three differentiated Halloween subtraction worksheets.
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Split Strategy for Subtraction – Interactive Teaching Slides
Demonstrate using the split strategy for subtraction with an instructional slide presentation.
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Compensation Strategy for Subtraction – Teaching Slides
Teach your students to use the compensation strategy for subtraction with an interactive teaching slide deck.
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Number Bonds Worksheet - Cut and Paste
Practice subtraction up to twenty with a cut-and-paste number bond worksheet.
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Counting Backwards to Subtract - Number Fact Board Game
Practice subtracting by counting backwards with a pair of printable subtraction games.
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Subtraction Bingo (Single and Double-Digit Numbers)
Practice subtracting single and double digit numbers with a fun Subtraction Bingo Game.