Debug Algorithm
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Subtraction Algorithm Posters/Anchor Charts
Help students remember the steps to the various algorithms for subtraction with these easy to use posters! Each poster has an example that is color-coded to correspond to the listed steps. There are versions of each poster with and without a colored border (depending on your personal preference). The algorithms included are: Break-ApartTrade-First*Counting UpExpand-and-Trade*Constant DifferenceCompensation (same as Constant Difference strategy, just a name that some curriculums use instead, so
2nd - 5th
Arithmetic, Basic Operations, Math
CCSS
2.NBT.B.5
, 2.NBT.B.6
, 2.NBT.B.7
+2
Also included in: +, –, x, ÷ Algorithm Posters/Anchor Charts Bundle
Addition Algorithm Posters/Anchor Charts
Help students remember the steps to the various algorithms for addition with these easy to use posters! Each poster has an example that is color-coded to correspond to the listed steps. There are posters with and without a colorful page border depending on your preference. The algorithms included are: Compensation strategyJump StrategyColumn additionStandard additionUS Traditional addition (same as standard, just a name that some curriculums use instead, so it has its own poster)Split Strateg
2nd - 5th
Arithmetic, Basic Operations, Math
CCSS
2.NBT.B.5
, 2.NBT.B.6
, 2.NBT.B.7
+2
Also included in: +, –, x, ÷ Algorithm Posters/Anchor Charts Bundle
Addition and Subtraction Mats to 1,000 and 10,000 Base Ten & Standard Algorithm
These versatile math mats help students visualize and solve addition and subtraction problems using both base ten models and the standard algorithm. Designed to strengthen understanding of place value and multi-digit operations, these mats give students a clear structure for representing, modeling, and solving problems step by step. This download includes two versions: Version 1: For numbers within 1,000 (three-digit numbers) Version 2: For numbers within 10,000 (four-digit numbers) Each mat
1st - 4th
Arithmetic, Basic Operations, Place Value
CCSS
1.NBT.A.1
, 1.NBT.B.2
, 1.NBT.B.2a
+26
New Totals Below Partial Sums Algorithm Digital BOOM Cards
New Totals Below or Partial Sums Algorithm is a great strategy to use when adding multidigit numbers. Students will practice adding one place value column at a time and then add all the parts to find the total sum. This method creates easier number to work with.. This product includes an introductory slide explaining the strategy. There are 10 cards to fill in. Your students will love these highly interactive card set!
Click Here for a Preview
What is a BOOM CARD?
Boom Cards play on moder
1st - 3rd
Arithmetic, Math, Place Value
CCSS
2.NBT.B.5
Addition Standard Algorithm Poster, anchor chart, math journal, regrouping
WHAT'S INCLUDED:2 anchor charts or poster to be used within the classroomBreaks down the standard algorithm of addition step-by-step. This is also called the "old" or "regrouping" way. The example used shows 4-digit by 3-digit addition. It also includes a page on how to know when to regroup whilst adding.Orange pastel themeEasily printable in just a few clicks. Can print in color or black/white!GOT A TECH ISSUE?If you are having difficulty downloading or opening this product, make sure to check
2nd - 4th
Arithmetic, Basic Operations, Place Value
CCSS
2.NBT.A.1
, 2.NBT.A.1a
, 2.NBT.B.6
+4
Subtraction Algorithm Poem Rhyme
This resource can be used as a poster or a handout for students to look back at or to insert into an interactive math notebook. The poem describes the steps for doing the standard subtraction algorithm with or without regrouping. The poem is catchy and easier remember and I find my students using independently with ease! Each stanza is accompanied by an example and one "You try to it" question.
2nd - 5th
Arithmetic, Basic Operations, Math
3 Digit Addition & Subtraction with Regrouping Worksheets Place Value Strategies
Before students learn the standard algorithm for addition and subtraction, they need a thorough understanding of what regrouping means. This resource is designed to help build that knowledge and move students toward using the traditional method. Includes: Addition mini book (8 pages)Subtraction mini book (11 pages)Addition worksheetSubtraction worksheetAnswer keysMINI BOOKSTwo "how-to" mini books walk students through example problems. Each step is clearly explained in both numbers and words. St
2nd - 3rd
Arithmetic, Basic Operations, Place Value
CCSS
2.NBT.B.7
, 2.NBT.B.9
, 3.NBT.A.2
+1
Three-Digit Subtraction Letter to Families in English and Spanish
Prevent families from teaching old-school regrouping algorithm to your students with this parent letter describing Common Core subtraction strategies. Included are suggestions on how families can support subtraction lessons for their children at home. Add your own date, signature and maybe clip art!
2nd - 6th
Arithmetic, Mental Math, Place Value
Three-Digit Addition Letter to Families in English and Spanish
Prevent families from teaching old-school regrouping algorithm to your students with this parent letter describing Common Core addition strategies. Included are suggestions on how families can support addition lessons for their children at home. Add your own date, signature and maybe clip art!
2nd - 6th
Arithmetic, Mental Math, Place Value
Interactive Math Mats (Multiplication) K-5
Interactive math mats can be used for introducing multiplication algorithms, for interactive journals, centers, or for students needing graphic organizers when setting up multiplication problems. Multiplication pack include lattice multiplication, area model multiplication, and standard algorithm multiplication, all include 3x1 digit, 4x1 digit, 2x2 digit, and 2x3 digit.
K - 6th
Arithmetic, Basic Operations, Math
The Pliability of Numbers: Strategies for Working Within Operations
This free packet contains strategies other than the traditional algorithm for addition, subtraction, multiplication, and division. It also examines ways of viewing fractions and basic algebraic equations. This packet is based on ways my students have solved these type of problems at their various levels of understanding. I did not explicitly teach these strategies, but rather, presented them with the opportunity to think about the meaning of these operations through problem solving. These are wa
2nd - 4th
Arithmetic, Basic Operations, Fractions
Interactive Math Mats (Division) K-5
Interactive math mats for teaching long division. Pack includes grid method and standard algorithm for 2x1, 3x1, 4x1, 4x2 digits long division. Can be used as a graphic organizer, printed for interactive notebooks, used for centers, or printed for students needing scaffolding when working long division problems.
2nd - 6th
Arithmetic, Basic Operations, Math
3 by 3 digit Subtract and Check
✨ What’s Included: Printable, no-prep format 📘 Skills Covered: 3-digit subtraction using the standard algorithm Regrouping as needed Checking subtraction using addition 🏫 Classroom Uses: Independent practice Small group instruction Formative assessment Homework or math centers 📌 Grade Level: 2nd Grade 📏 Standards: Texas TEKS aligned Eureka/Bluebonnet Math Module 5
2nd - 3rd
Arithmetic, Basic Operations, Mental Math
Addition Strategies in Today's Classroom
This 2 page (can be printed back-to-back) PDF is helpful in explaining to parents why the traditional addition algorithm of "stacking" is not always the best, nor the most efficient, method available to children. This is great Back To School Night information, and may help parents understand your classroom's math program from the very start of the school year. It illustrates some of the strategies that they will see their children learning in today's classroom. This PDF contains examples of thre
1st - 6th
Arithmetic, Basic Operations, Mental Math
Addition Strategies for Today's Classroom
This 2 page (can be printed back-to-back) PDF is helpful in explaining to parents why the traditional addition algorithm of "stacking" is not always the best, nor the most efficient, method available to children. This is great Back To School Night information, and may help parents understand your classroom's math program from the very start of the school year. It illustrates some of the strategies that they will see their children learning in today's classroom. This PDF contains examples of thr
1st - 6th
Arithmetic, Basic Operations, Mental Math
Addition and Subtraction Poem Posters
Kids love melody and love to sing, what a better way to make math multi sensory.Help your students learn the rules of traditional algorithms for double or triple digit addition and subtraction with these easy to remember poems. 2 digit addition and 2 digit subtraction poem posters. Includes full page posters as well as 4 per sheet for math notebooks. You can blow the PDF up to poster size by scaling it to 200%. Don't like to sing? If you want a song to go with the addition poem check out the
1st - 4th
Arithmetic, Basic Operations, Math
Addition and Subtraction Place Value Organizers
Some students may find it difficult to line up digits correctly when adding or subtracting large numbers. These place value organizers set up the standard algorithms for addition and subtraction up to the millions for students using blank boxes, and even have the place values labeled!
They can be slipped into a sheet protector and be used with dry-erase markers or on their own with a pencil. Works great for students with not-so-neat handwriting!
2nd - 5th
Arithmetic, Basic Operations, Math
3.NBT.2 Quiz and Exit Slip
This product contains a 4 question quiz and a two question exit slip for CCSS 3.NBT.2.
3.NBT.2 - Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
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2nd - 4th
Arithmetic, Basic Operations, Math
CCSS
3.NBT.A.2
Distance Learning: 2-Digit & 3-Digit Subtraction Worksheets includes Regrouping
This resource may be shared digitally with your students and parents to assist with their distance learning needs. These worksheets work great for students needing extra practice with the standard algorithm for subtraction. Plus a fun scoot once students are ready! Below is everything you get: 2-Digit subtraction without regrouping (answer key included)2-Digit subtraction with regrouping (answer key included)2-Digit subtraction with and without regrouping (answer key included)3-Digit subtraction
1st - 4th
Arithmetic, Basic Operations, Math
Addition Strategies Posters
Addition Strategies posters are perfect as Anchor Charts or notes for your students. Five step by step posters are Included in this set:
Splitting Strategy
Adding On Strategy
Moving Strategy
Compensation Strategy
Standard Algorithm
Looking for more Strategy Posters? Buy the complete set here:
Strategies Posters Bundle
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Subtraction Strategies Posters
Multiplication Strategies Posters
Division Strategies Posters
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2nd - 5th
Arithmetic, Basic Operations, Math
CCSS
3.NBT.A.2
Also included in: Addition, Subtraction, Multiplication & Division Strategy Posters Bundle
Subtraction Strategies Posters
Use these 6 Step by Step Subtraction Strategies posters as Anchor Charts or notes for your students. Included in this set are:
Adding On Strategy
Subtracting Off Strategy
Partial Splitting Strategy
Equal Difference Strategy
Compensation Strategy
Standard Algorithm
Looking for more Strategy Posters? Buy the complete set here:
Strategies Posters Bundle
★★★ Did You Know...
You can get TPT credits to use on future purchases! Go to your My Purchases page and click on the Provide Feedback link. By
2nd - 6th
Arithmetic, Basic Operations, Math
Also included in: Addition, Subtraction, Multiplication & Division Strategy Posters Bundle
Subtraction Strategies Anchor Charts: Subtracting 2-digits With Regrouping
Make Teaching Subtraction Strategies Simple and Visual!This resource includes six 8.5 x 11 anchor charts that clearly explain different subtraction strategies for 2-digit numbers (regrouping strategies)— perfect for helping your students move beyond the standard algorithm and truly understand what subtraction means. You’ll also get mini subtraction strategy charts designed for students to use as quick-reference guides. These smaller versions are ideal for math notebooks, math centers, or sma
1st - 6th
Arithmetic, Basic Operations, Math
Subtraction Strategies Anchor Charts: Subtracting 3-digits With Regrouping
Make Teaching Subtraction Strategies Simple and Visual!This resource includes six 8.5 x 11 anchor charts that clearly explain different subtraction strategies for 3-digit numbers (regrouping strategies)— perfect for helping your students move beyond the standard algorithm and truly understand what subtraction means. You’ll also get mini subtraction strategy charts designed for students to use as quick-reference guides. These smaller versions are ideal for math notebooks, math centers, or sma
1st - 6th
Arithmetic, Basic Operations, Math
3-Digit Subtraction Tool | Step-by-Step Visual Support for Regrouping
Make subtraction with regrouping click for your students using this visual, hands-on math tool! The 3-Digit Subtraction Tool provides step-by-step support to help learners understand and master 3-digit subtraction with base ten blocks and visual algorithms. This resource includes: ✓ Black & white and color versions of the subtraction tool ✓ Step-by-step directions for each place value (ones, tens, hundreds) ✓ A student-friendly version for independent practice ✓ A blank version for scaffol
2nd - 4th
Arithmetic, Basic Operations, Numbers
CCSS
2.NBT.B.5
, 2.NBT.B.7
, 3.NBT.A.2
+1
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