Debug Algorithm
21+ results
Filters
Grade
Subject
Resource type
Standard
Language
Programs & methods
Supports
3-Digit Addition Worksheets (No Regrouping) -Split, MAB & Algorithm Year 2 & 3
These 3-digit addition worksheets (no regrouping) help students practise adding larger numbers using place value strategies. Students solve problems using split strategy, base-ten blocks (MAB), and the standard algorithm, building strong conceptual understanding of addition. Perfect for Years 2–3 maths lessons, small group instruction, intervention, or independent practice. 📦 What’s Included ✔ 4 student worksheet pages ✔ 12 addition problems (3-digit addition, no regrouping) ✔ Clear wo
2nd - 3rd
Basic Operations
CCSS
2.NBT.A.1
, 2.NBT.B.5
, 2.NBT.B.7
K–2 Classroom Reset Slides | Debug Lab Spiral Review for Math & ELA
💻🔍 K–2 CLASSROOM DEBUG LAB | FIND THE BUG SPIRAL REVIEW SLIDES 🔍💻 Your students are not just reviewing skills — they are becoming classroom “debuggers!” This tech-inspired slide deck transforms end-of-year review into an engaging error-analysis challenge where students find, explain, and fix “bugs” in routines, math, oral language, and early literacy tasks. Perfect for kindergarten, first grade, second grade, intervention groups, morning meeting, classroom reset time, spiral review, or those
K - 2nd
Arithmetic, Classroom Community, Reading Strategies
End-of-Year Classroom Reset Slides K–2 | Classroom Debug Lab
🚨 CLASSROOM DEBUG LAB: END-OF-YEAR RESET SLIDES 🚨 Your class does not need more noise right now — it needs a calm, clever, and structured reset. Classroom Debug Lab helps K–2 students rebuild routines, strengthen listening skills, practice self-regulation, and spiral review core academic concepts in ONE cohesive slide deck. Designed for late-May and end-of-year survival mode, this premium static slide deck blends classroom management + spiral review + stamina repair into a polished teacher-led
K - 2nd
Classroom Community, Place Value, Reading Strategies
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
Partial sums 2 digit addition mini lesson, Game for Practice, assessment
Partial sums addition strategy uses place value to solve addition equations.Students struggle with traditional algorithm because they don’t understand that “carry the one” means they are actually composing a ten. Even students who use the traditional method will benefit from partial sums practice. Math Games Boost Engagement & Motivation, promotes deep understanding & fluencyIncludes:3 page mini lessonassessment Race to the Top Game Players read the equation made with the cards aloud togethe
2nd - 3rd
Basic Operations, Mental Math
CCSS
1.NBT.C.4
, 2.NBT.A.1
, 2.NBT.A.3
+1
Vertical Triple digit addition- with and without regrouping
Triple-digit addition- with and without regrouping This resource can be used to practice standard algorithm. Vertical addition requires students to be able to stack the numbers based on place value. This skill is a challenge for many students, but most math curricula skip straight past this step. Use this resource to supplement for Triple-digit (3 digit) addition. Differentiated for the use of all students (ready for regrouping or still mastering stacking). Place value supports provided. 8 tota
2nd - 4th
Math
Cross Sum Puzzles (Free Version)
Includes instructions and the first six Cross Sum puzzles from Beast Academy's puzzle collection. Cross Sum puzzles give great practice for student using the standard addition algorithm with 3-digit numbers. Students fill missing digits to create two different sums. One can be read by tilting the grid to the left, and the other can be read by tilting the grid to the right. This free version includes instructions and the first 6 puzzles from the complete set. The Full Version includes 42 puzzles
2nd - 4th
Arithmetic, Basic Operations, Math
CCSS
2.NBT.B.7
, 3.NBT.A.2
, 4.NBT.B.4
GAME: Carnival - Addition & Subtraction & Estimation
GAME: Carnival - Addition & Subtraction & EstimationThe same ol' drill and practice, I called, "Drill and Kill"! We want our students to have speed and mastery of the basic algorithms, yet just problem set after problem set gets wrote and dull. Here is a game I invented that puts strategy, uses estimation, and there is incentive = TO WIN! Students have to stay engaged because if their partner makes a mistake, they get the points. LET'S GO!!!
1st - 4th
Arithmetic, Math
3 Digit Subtraction with Regrouping Task Cards | End of Year Math Review
These 3 digit subtraction with regrouping task cards are perfect for end of year math review, May math centers, small groups, early finishers, homework, test prep, intervention, and summer review practice Students will practice solving 3 digit subtraction with regrouping problems using the standard subtraction algorithm This resource helps build confidence with borrowing, place value, subtraction fluency, and multi-digit subtraction skills What’s included: 24 unique 3 digit subtraction with r
2nd - 4th
Numbers, Other (Math)
3 Digit Subtraction without Regrouping Task Cards | End of Year Math Review
These 3 digit subtraction without regrouping task cards are perfect for end of year math review, May math centers, small groups, homework, early finishers, intervention, test prep, and summer review practice Students will practice solving 3 digit subtraction without regrouping problems using the standard subtraction algorithm This resource helps build confidence with subtraction fluency, place value, and multi-digit subtraction without borrowing What’s included: 24 unique 3 digit subtraction
2nd - 4th
Numbers, Other (Math)
Rubik's Cube Mosaics: 2nd Grade Edition
Rubik's Cube is the world's most popular and tantalizing puzzle so why not use them in your classroom? Building a Rubik's Cube mosaic is a great way to celebrate the success of learning to solve one side of the Rubik's Cube while providing practice to memorize the algorithms and skills it takes to completely solve the cube. In this "Rubik's Cube Mosaics: 2nd Grade Edition" activity, students create Rubik’s Cube mosaic designs and use their designs to practice 2nd-grade math concepts such as: wor
2nd
Math
Also included in: Rubik's Cube Mosaics: Math Bundle
3-Digit Addition with Regrouping Worksheets l 2nd-3rd Grade l Winter l NO PREP
3-Digit Addition with Regrouping Worksheets l 2nd-3rd Grade l Winter l NO PREP.Ready for a challenge? This NO PREP 3-Digit Addition with Regrouping packet is a must-have for your classroom! This resource is essential for 3rd Grade Math students mastering the standard algorithm, and perfect as a 2nd Grade extension activity. It provides targeted practice on three-digit addition and multiple-step regrouping. The worksheets encourage students to show their work to strengthen their understanding of
2nd - 3rd
Arithmetic, Coloring Pages, Numbers
The Legend Of Rock Paper Scissors Computer Science Book Companion
🪨📄✂️ The Legend of Rock Paper Scissors: K-2 Computer Science Lesson | Algorithmic Thinking & Data AnalysisTurn a classic playground game into an unplugged computer science adventure! This ready-to-print, no-prep lesson uses the hilarious picture book The Legend of Rock Paper Scissors by Drew Daywalt to teach your youngest learners two big CS ideas: algorithms (step-by-step instructions) and data analysis (collecting, organizing, and reading data). No devices required! Students discover that
K - 5th
Computer Science - Technology, Not Subject Specific, Statistics
2-Digit Addition with Regrouping Workmat & Recording Page
This 2-Digit Addition Work mat is a great tool when introducing regrouping to students. Students use base-10 blocks to model the addition problems. If there are enough ones to make a new ten then they will mark the box on the work mat and exchange 10 ones for a ten stick. This activity is a bridge between manipulatives and the standard algorithm. Two recording pages are included for small group and independent practice. This would make a wonderful math center and the work mat could be used wi
1st - 2nd
Applied Math, Basic Operations, Place Value
CCSS
2.NBT.B.5
, 2.NBT.B.6
, 2.NBT.B.7
Sudoku Puzzle Worksheet Bundle
120 Sudoku Worksheets with AnswersGive your students logic, critical thinking, and relaxation skills with these unique puzzles. ⭐40 x 4x4 Sudoku ⭐40 x 6x6 Sudoku ⭐40 x 9x9 Sudoku (Easy Level) One hundred and twenty different easy and beginner level sudoku puzzles in a classroom worksheet format. Each page has a decorative border, basic instructions, and space for name/class/date. Answer sheets provided - two per page. Bundle Bonus72 extra sudoku puzzles made with a different algorithm to mi
1st - 12th
Other (Math)
CCSS
MP1
, MP5
Chess Logic, Mazes & Mystery Art BUNDLE | Critical Thinking & Math Enrichment
Make logic fun with the magic of chess! This bundle is designed to build critical thinking, focus, and spatial awareness through engaging, chess-themed puzzles. No advanced chess knowledge is required, just pure logic and creativity! What’s inside this Creative Bundle?100+ Chess Strategy Mazes: Master board vision and safe navigation.100+ Chess Sudoku Puzzles: Classic logic with a chess twist (Junior 4x4 & Pro 6x6).20 Chess Mystery Pixel Art: Coordinate graphing and piece recognition.Bonus Logi
K - 8th
Geometry, Other (Math)
Student Toolbox Multi-Digit Addition & Subtraction Mat | Word Problem Keywords
Demystify regrouping and conquer word problems with this comprehensive, compact Addition and Subtraction Desk Reference Card! Multi-digit operations can be mechanically overwhelming for elementary students, who frequently mix up the steps of carrying and borrowing or struggle to figure out what a word problem is asking them to do. This student-friendly helper card provides a powerful, two-in-one scaffold right at their fingertips. Down the center, the mat features a granular, 3-step visual walk
2nd - 4th
Basic Operations, Mental Math
2–3 Digit Addition No Regrouping Worksheets & Error Analysis Bundle
Save money by purchasing this bundle! Individually, these resources total $6.50, but this bundle is available for $5.00. Build student confidence in addition using place value strategies, visual supports, and error analysis tasks designed to deepen mathematical understanding. This bundle combines my: 2 & 3-Digit Addition No Regrouping Worksheets 2–3 Digit Error Analysis Addition Worksheets These resources help students develop fluency with addition while also identifying and correcting commo
2nd - 3rd
Basic Operations
CCSS
2.NBT.B.5
, 2.NBT.B.7
, 3.NBT.A.2
3-Digit Addition No Regrouping Worksheets l 2nd-3rd Grade l Winter l NO PREP
3-Digit Addition No Regrouping Worksheets l 2nd-3rd Grade l Winter l NO PREP.Build confidence with big numbers! This NO PREP 3-Digit Addition (No Regrouping) packet is perfect for introducing or reinforcing place value. Designed for 2nd Grade Math (as an extension) and 3rd Grade Math (as a strong foundation), this resource provides abundant practice on three-digit addition without regrouping. This is an essential step for solidifying Place Value understanding before moving on to complex regroupi
2nd - 3rd
Arithmetic, Coloring Pages, Numbers
Understanding Place Value & Make Trades: Ones, Tens & Hundreds or Money
Understanding Place Value & Make Trades: Ones, Tens & Hundreds or Money
In this game students can gain knowledge in the concept of making trades. They will build, read and write numbers to 100 using counters, base-10 blocks and even money. The game reinforces the skills of place value, value, the importance of trades, orally reading numbers, writing numbers, and the connection/relationship between base-10 blocks and coins and bills. Students can play this game with a partner, in a small grou
K - 5th
Place Value
Bloomsmath Differentiated Multiplication & Division Maths Activities for Year 2
Instantly differentiate your maths lessons with these FUN ready to print activity sheets that you and your students will love. Based on Benjamin Blooms taxonomy, Bloomsmath allows every student to work to their fullest ability. More able students remain motivated and keen to learn freeing you up to assist those students who really need you. In addition to quality worksheets that are colourful, playful and fun, each Bloomsmath set also contains a questions guide you can use to get your students t
2nd
Basic Operations, Math
CCSS
MP1
, MP2
, MP3
+5
Showing 1-21 of 21+ results
TPT is the largest marketplace for PreK-12 resources, powered by a community of educators.
IXL family of brands