Debug Algorithm
29+ results
Filters
Grade
Subject
Format
Resource type
Standard
Language
2-Digit & 3-Digit Subtraction with Regrouping Bundle
Subtraction Worksheets | 2nd–4th Grade | Traditional Algorithm PracticeTeaching subtraction can sometimes be frustrating for both teachers and students. Developing fluency with the traditional subtraction algorithm requires structured practice, repetition, and clear organization. This resource provides a variety of worksheets designed to help students strengthen their subtraction skills and build confidence with the standard algorithm. The activities provide scaffolded practice so students can m
2nd - 4th
Arithmetic, Basic Operations, Math Test Prep
CCSS
2.NBT.B.5
, 3.NBT.A.2
, 4.NBT.B.4
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
Addition Within 100 (with and without regrouping)
This resource helps students learn and practise the addition algorithm with regrouping in a clear and structured way. The worksheets guide students step by step through the addition process, helping them understand how to line up numbers correctly and how to carry when the total is 10 or more. The exercises progress from easier questions to more challenging ones, allowing students to build confidence and accuracy. This resource is suitable for Year 2–Year 4 students and can be used for classro
K - 3rd
Arithmetic, Basic Operations
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
Adding & Subtracting in Chunks (M4P.E20)
This 'new strategy' for subtraction may look different than the standard algorithm, but this one-page notes worksheet attempts to make this concept understandable by understanding how to flexibly work to divide a number by determining how many groups there are of the divisor. It is a part of a series of resources created to accompany the book, Math for Parents: Elementary Edition. Find more resources here on TPT, or on my website @ flippinmath.com.
K - 2nd
Arithmetic, Basic Operations, Math
CCSS
2.NBT.B.7
Also included in: Math for Parents: Elementary Edition
3 Digit Addition & Subtraction | Without Regrouping | Task Cards
🚨 Ready to Move Beyond “Just Solve It”? 🚨 If your students can do the standard algorithm… but can’t explain why it works—this is exactly what you need. 🧠✨ 3-Digit Addition & Subtraction Task Cards (No Regrouping) ✨🧠 These aren’t your typical plug-and-chug problems. Yes, students practice computation—but more importantly… 👉 They THINK 👉 They EXPLAIN 👉 They CHOOSE STRATEGIESWith 12 thoughtfully designed task cards + a student recording sheet, your learners will: ✔️ Build true con
2nd - 3rd
Arithmetic, Basic Operations
CCSS
2.NBT.B.7
, 3.NBT.A.2
Also included in: 3 Digit Adition & Subtraction | With and Without Regrouping | Task Cards
2-Digit & 3-Digit Addition with Regrouping Bundle
Teaching addition with regrouping can sometimes be challenging for both teachers and students. Developing fluency with the traditional addition algorithm takes time, practice, and clear structure. This resource is designed to support students as they build confidence and accuracy while practicing addition with regrouping. The worksheets in this resource provide structured practice to help students strengthen their understanding of addition and master the traditional algorithm. Included in This R
2nd - 4th
Arithmetic, Basic Operations, Math Test Prep
CCSS
2.NBT.B.5
, 3.NBT.A.2
, 4.NBT.B.4
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
Vertical Multiplication Worksheets | 2-Digit by 1-Digit
Build strong multiplication skills with these clear, scaffolded vertical multiplication worksheets designed to strengthen accuracy and confidence. These worksheets focus on the standard vertical algorithm and provide structured practice to help students line up place value correctly, multiply accurately, and apply regrouping strategies with confidence. A key feature of this resource is the option to use worksheets with a grid background. The grid supports students in aligning digits correctly by
2nd - 5th
Algebra, Arithmetic, Basic Operations
Division Strategies Anchor Chart
This colorful and student-friendly division strategies anchor chart introduces multiple ways to solve division problems, including drawing pictures, repeated subtraction, multiplication facts, partial quotients, number lines, and the standard algorithm. Designed with clear examples and a clean white background, it helps elementary learners build confidence and develop a deeper understanding of division concepts through visual and step-by-step strategies.
1st - 12th, Adult Education, Higher Education
Algebra, Arithmetic, Basic Operations
2–4 Digit Addition No Regrouping Worksheets & Error Analysis Bundle Grades 2–4
⭐ Best Value Bundle | Usually $8.50 | Bundle Price: $7.50Make teaching multi-digit addition easy with this NO regrouping addition bundle for Years 2–4! Includes worksheets, worked examples, split strategy, MAB/base-10 representations, algorithm practice, and error analysis tasks. What’s Included ✅ 104 Questions ✅ Answer Keys Included ✅ Clear Worked Examples ✅ Learning Intentions & Success Criteria ✅ Split Strategy + Algorithm Strategy ✅ MAB/Base-10 Concrete Representations ✅ Error Analysi
2nd - 4th
Arithmetic, Basic Operations, Mental Math
CCSS
2.NBT.B.5
, 2.NBT.B.7
, 3.NBT.A.2
+1
3 Digit Addtion & Subtraction | With Regrouping | Task Cards
🚨 Regrouping… But Make It Make Sense! 🚨 Are your students following steps… but not really understanding regrouping? Do they freeze the second they see a problem that requires borrowing or carrying? 😅 It’s time to go beyond the algorithm… 🧠✨ 3-Digit Addition & Subtraction Task Cards (WITH Regrouping) ✨🧠 These task cards don’t just ask students to solve—they challenge them to think deeply about what regrouping actually means. With 12 engaging task cards + a student recording sheet, your
2nd - 4th
Arithmetic, Basic Operations, Numbers
CCSS
2.NBT.B.7
, 3.NBT.A.2
, 4.NBT.B.4
Also included in: 3 Digit Adition & Subtraction | With and Without Regrouping | Task Cards
Addition (Stacked) — Bundle (All 3 Levels)
All three levels of vertical column addition — Easy (1–10), Medium (1–50), and Hard (1–100) — in one bundle. 150 worksheets with complete answer keys. Perfect for differentiating across Grades 1–4 or building toward the standard algorithm step by step.
1st - 4th
Arithmetic
Mastering Long Division: Step-by-Step Strategies and Practice! Anchor Chart
📌 Title:Mastering Long Division: Step-by-Step Strategies and Practice 📝 Description:This resource helps students understand and master long division through clear, step-by-step instruction. Students will learn how to divide multi-digit numbers using the standard algorithm by following the process of divide, multiply, subtract, and bring down. The material includes guided examples, visual supports, and practice problems to build accuracy and confidence. This resource is perfect for reinforcin
1st - 12th
Algebra, Arithmetic, Basic Operations
Mastering Subtraction: Helpful Strategies for Success - Anchor Chart
This black-and-white subtraction strategies anchor chart presents multiple methods students can use to solve subtraction problems with confidence. The chart includes clear explanations and examples for counting back, making a ten, compensation, partial differences, and the standard algorithm. Large, easy-to-read lettering and simple visual models help learners understand each strategy step by step. The clean white background makes the information organized and accessible for classroom display or
1st - 12th, Adult Education, Higher Education
Algebra, Arithmetic, Basic Operations
Subtraction Strategies Anchor Chart
This colorful and kid-friendly anchor chart introduces different subtraction strategies in a simple and engaging way. Students can learn how to solve subtraction problems using methods such as counting back, using manipulatives, making a ten, number bonds, compensation, and the standard algorithm. Large visuals, bright colors, and easy-to-read examples help young learners build confidence and understanding in subtraction.
1st - 12th, Adult Education, Higher Education
Algebra, Arithmetic, Basic Operations
3 Digit Adition & Subtraction | With and Without Regrouping | Task Cards
Best of Both Worlds!✨ Introducing the 3-Digit Addition & Subtraction Task Card BUNDLE ✨ ( With & Without Regrouping) This bundle is designed to grow with your students—starting with foundational skills and building all the way up to mastering regrouping with confidence. We're not just talking standard algorithm here, but actual building conceptual understanding. 🧠 What’s Included: ✔️ No Regrouping Set – Build confidence & solidify place value understanding ✔️ With Regrouping Set – Tackl
2nd - 4th
Arithmetic, Basic Operations, Other (Math)
CCSS
2.NBT.B.7
, 3.NBT.A.2
6th Grade Whole Number Operations Presentation | Lesson Guided Notes
Build a strong foundation in math with this 34-slide presentation on whole number operations, designed for 6th grade students. This engaging and structured lesson helps students master addition, subtraction, multiplication, and division of whole numbers through clear, step-by-step instruction. Students will review place value, apply standard algorithms, and develop accuracy in solving problems. The lesson focuses on both conceptual understanding and procedural fluency, helping students under
1st - 12th
Algebra, Arithmetic, Basic Operations
2-Digit Vertical Addition w/ Regrouping (30 A4 PDF + Key)
2-Digit Vertical Addition With Regrouping Meets CCSS 1.NBT.B.2c • 1.NBT.C.4 • 2.NBT.B.5 • 2.NBT.B.7 • 3.NBT.A.2Give your learners the practice they need to carry a ten with confidence! This printable PDF set delivers 30 no-prep worksheets that strengthen place-value understanding and the standard addition algorithm—perfect for Grades 1-3 classrooms, homework packets, or math centers. What’s Inside 30 A4 worksheets of vertical 2-digit + 2-digit problems that require regrouping Embedded answ
2nd - 3rd
Arithmetic, Basic Operations, Numbers
CCSS
1.NBT.B.2c
, 1.NBT.C.4
, 2.NBT.B.5
+2
3-Digit Addition Worksheets | With& Without Regrouping | Grade 2–3 Math Practice
⭐️ The 3-Digit Addition Within 1000 Worksheets (With and Without Regrouping)Give your students essential practice with 3-digit addition problems both with regrouping and without regrouping. This resource includes a variety of worksheets that strengthen students’ understanding of place value and help them become fluent in solving larger addition problems using the standard algorithm. Perfect for classwork, math centers, small groups, homework, or test prep, these worksheets are clear, student
2nd - 3rd
Arithmetic, Basic Operations, Math
CCSS
2.NBT.A.1
, 2.NBT.B.5
, 2.NBT.B.7
+2
Subtraction Strategies Scaffolded Notes and Worksheets 2nd-6th Grade
This resource is a set of scaffolded notes and worksheets focusing on subtraction strategies for students in grades 2-6. The strategies include: Jump Strategy (also called Sequencing, Cumulative Sums Strategy or Subtraction on a Number Line)Split Strategy (also called Partitioning)Compensation Strategy (also called Give and Take or Constant Differences)Inverse Strategy (also called Bridging or Shopkeeper's Method)Vertical Algorithm (without trading or regrouping)The materials include step-by-st
2nd - 6th
Arithmetic, Basic Operations, Math Test Prep
Defend the Strategy | 3 Digit Subtraction | With Regrouping
Defend the Strategy: 3-Digit Subtraction with Regrouping (DOK 3) 💬Take subtraction to the next level with this high-rigor math task that gets students thinking, explaining, and justifying their reasoning! In this Defend the Strategy activity, students analyze different methods for solving 3-digit subtraction with regrouping and determine which strategies are correct—then defend their thinking with evidence. Perfect for building deep understanding beyond the standard algorithm!
2nd - 4th
Arithmetic, Basic Operations, Other (Math)
CCSS
2.NBT.B.9
, 3.NBT.A.2
, 4.NBT.B.4
Showing 1-24 of 29+ results
TPT is the largest marketplace for PreK-12 resources, powered by a community of educators.
IXL family of brands