CCSS.MATH.CONTENT.2.NBT.B.9
Explain why addition and subtraction strategies work, using place value and the properties of operations.
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Double-Digit Addition Strategies Posters
Teach different double-digit addition strategies with this set of four classroom posters.
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Double-Digit Subtraction Strategies Posters
Remind your students to use different subtraction strategies with a set of printable subtraction anchor charts.
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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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Subtraction Strategies Puzzle Match
Practice identifying and using different subtraction strategies with a set of printable math puzzles.
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Number Bonds Subtraction - Worksheet
Practice subtraction using number bonds with differentiated number bond worksheets.
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2-Digit Subtraction with Place Value Disks - Match Up
Practice using place value disks to solve 2-digit subtraction problems with a matching activity.
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Subtraction Methods - Printable Mini-Book
Review and practice various subtraction strategies with a printable 3-digit subtraction mini book.
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Fact Family Find and Flip - Double-Digit Addition and Subtraction
A game to practice working with addition and subtraction fact families using double-digits.
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Number Talks - Double Digit Addition Task Cards
Build number sense skills with this set of 24 task cards.
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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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Subtraction Using Base 10 Blocks - Worksheet
Subtract two-digit numbers using base-10 blocks with a printable subtraction worksheet.
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Ten Frame - Printable Templates
Print a set of 10 blank ten frames to use in various math lessons.
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Fact Family Find and Flip - One- and Two-Digit Addition and Subtraction
Addition and subtraction game cards demonstrating the relationship between fact families.
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Number Talks - Place Value Task Cards
Build number sense skills with this set of 24 task cards.
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Addition Strategy - Counting On Worksheet
Solve addition problems in this 2-page Counting On Addition Worksheet.
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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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Subtraction Within 100 - Jump Strategy Puzzles
Practice identifying and using the jump strategy for subtraction with a set of printable math puzzles.
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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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2-Digit Subtraction Using Bar Models- Task Cards
Review and assess your students’ subtraction skills with a set of 2-digit subtraction task cards focusing on the bar model strategy.
resource pack
Number Talks Teaching Resource Pack - Grade 2
A collection of number talks teaching resources that support meaningful and highly engaging conversations in the mathematics classroom.