Debug Algorithm
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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!
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1st - 3rd
Arithmetic, Math, Place Value
CCSS
2.NBT.B.5
Standard Algorithm Addition Strategy Poster
Here is a great poster to help visualize the Standard Algorithm for regrouping!
2nd - 4th
Arithmetic, Basic Operations
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Subtraction Algorithms for all grades
This file contains the notes I took at the NCTM Conference in Chicago. I attended a presentation on Subtraction by Frances Stern. She taught various ways to subtract with regrouping. My most favorite to use in class is the number line and France's way on pages 6-7. The France way is what I refer to in my class as "Give, Give It Back"...It's SO MUCH EASIER TO TEACH AND UNDERSTAND than the Traditional U.S. way. I don't know where this has been all my life. Please give it a try! It takes some pract
2nd - 9th
Arithmetic, Math, Mental Math
7:53
Dividing with the Standard Algorithm
This free resource from WhiteBoard Math uses elephants and a few truckloads of peanuts to divide with the standard algorithm. We start by defining division terms: dividend, divisor, quotient, then demonstrates, step-by-step, dividing into a 4-digit dividend. As with other WhiteBoard videos, the content starts simple then progresses towards more complex thinking. This is our free product because so many teachers are looking for a good video on how to do “long division”. Your students will
2nd - 6th
Arithmetic, Basic Operations, Math
CCSS
3.OA.A.2
, 3.OA.A.3
, 4.OA.A.2
+1
Two-Digit Multiplication Practice
Multiplication practice sheet with algorithm reminders in the form of placement graphics to help students remember the steps and help the student to study wonderfully. To request more, please contact us https://www.teacherspayteachers.com/Store/The-Strong-Professor
PreK - 2nd, Adult Education
Arithmetic, Basic Operations, Math
2 & 3 Digit Expanded Form Addition with Regrouping
For students to understand why the traditional algorithm works, they must know the rules of place value. By blowing numbers apart and adding each place value, students will develop confidence with regrouping. These strategy cards can be used for an entire unit and eliminate the need for photocopying work sheets. Students who work faster, do more cards or move up a level faster. Slower students do not become overwhelmed with volume of work as they are only ever faced with one problem at a ti
2nd - 4th
Arithmetic, Math, Place Value
CCSS
2.NBT.A.1
, 2.NBT.A.1a
, 2.NBT.A.1b
+7
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
Subtraction with Regrouping Step-by-Step Book
A great tool to help your students remember how to use the algorithm to solve 2 digit subtraction problems!
Options for use:
- Can be left as a single page mat (as shown).
- Cut apart and staple together to make a book
- Cut apart and place on a binder ring to make a flip book
- Cut apart and make it into an ordering game!
- Cut apart and use as an interactive notebook
Other products to check out:
CCSS Daily Math Warm Ups 2nd Grade - January
Math Fluency Mastery Packet {Addition and Sub
1st - 3rd
Arithmetic, Math
CCSS
2.NBT.B.7
3 Digit Addition without Regrouping Worksheets
3 Digit Addition without Regrouping Worksheets focuses on teaching students the standard algorithm for these operations by using place value while avoiding the complexity of "carrying over" (addition). Here's a breakdown of the core concepts:1. Place Value Understanding The fundamental idea is that students must align numbers vertically by their place value columns: Hundreds, Tens, and Ones. 2. Performing the Operation Right-to-Left The process is always executed from the rightmost column (Ones)
2nd - 4th
Arithmetic, Basic Operations
3 Digit Subtraction without Regrouping Worksheets
3 Digit Subtraction without Regrouping Worksheetsfocuses on teaching students the standard algorithm for these operations by using place value while avoiding the complexity of "borrowing" (subtraction). Here's a breakdown of the core concepts:1. Place Value Understanding The fundamental idea is that students must align numbers vertically by their place value columns: Hundreds, Tens, and Ones. 2. Performing the Operation Right-to-Left The process is always executed from the rightmost column (Ones
2nd - 4th
Arithmetic, Basic Operations
2 & 3 Digit Subtraction Expanded Form
The expanded form subtraction strategy is a great stepping stone to understanding why the standard algorithm works. Students will cement their understanding of place value and practice organizing their work to arrive at accurate calculations. There are 168 different problems for students to solve. They can be used as a whole class activity or as a Math center. Simply laminate and you will never have to prep your unit again! The file includes... Level 1: 2 digit subtraction, no regrouping (
2nd - 4th
Arithmetic, Mental Math, Place Value
CCSS
2.NBT.A.1
, 2.NBT.A.1a
, 2.NBT.A.1b
+4
Three-Digit Addition and Subtraction Review
Review for three-digit addition and subtraction. Contains word problems, error analysis, and the standard algorithm. I used this with my 2nd graders.
2nd - 4th
Arithmetic, Math, Math Test Prep
CCSS
2.NBT.B.7
Dynamic Addition within 100
This page will help students develop conceptual understanding of addition with regrouping before using the regular algorithm. You can put it in a sheet protector or laminate it and students can use dry-erase markers to draw out the total number of tens and units.
2nd
Arithmetic, Basic Operations
CCSS
2.NBT.B.5
Math Quick Check Assessment: Two-Digit Addition
Quick Check Assessments for two-digit addition Multiple strategies: Base TenExpanded FormOpen Number LineStandard AlgorithmBoth with and without regrouping
1st - 3rd
Arithmetic, Math, Other (Math)
CCSS
1.NBT.C.4
, 2.NBT.B.5
, 3.NBT.A.2
Operation Glue It - Addition Sampler *FREEBIE*
Say goodbye to worksheet boredom and hello to hands-on math excitement! Operation Glue It transforms ordinary vertical algorithm practice into an engaging cut-and-paste activity that gets students solving, cutting, and gluing with purpose. This is a free one-page sampler of the full version. How it works:Print the page and hand it out as a worksheet. Students solve each math operation using their pencil, then find the correct answer from the answer box, cut it out, and glue it beneath the matc
2nd - 6th
Arithmetic, Basic Operations, Place Value
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 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
8:49
Decomposing: Addition Notations
This video will solve an addition equation in three different addition notations using decomposing. Next, the video focuses on comparing those notations to the traditional algorithm.
Includes:
♦ 4 addition notation pages from the video
For worksheets in the notation of the Starting with the 2nd Addend example from the video, check out Addition Notations: Arrow Language.
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More Video Fun:
Treasure Number Lines: Where is the Answer on
2nd - 4th
Arithmetic, Basic Operations, Math
3-Digit Addition, Arrow Method
This single worksheet is great as an exit ticket, for homework, or to use for early finishers! It covers the arrow way, mental math, and standard algorithm strategies.This aligns with 2nd Grade Bluebonnet Math Modules 4 and 5.
2nd - 3rd
Arithmetic, Mental Math, Numbers
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
MATHFACT FAMILIES (CPA)FREEBIE
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This is a concrete way to show part-part whole using any kind of manipulatives. Pictorial helps students visualize, and bonding bridges the gap to the algorithm.
Bonding also helps students see the different fact families.
Why Bonding?
*Builds on fact families so the students can make sense of number combinations and become fluent.
*Helps students compose and decompose numbers.
PLEASE! Be sure to rate this product and provide feedback to earn TpT credits good towa
K - 3rd
Arithmetic, Basic Operations, Numbers
CCSS
3.NBT.A.2
, 1.OA.B.3
, 1.OA.C.6
+3
Add Within 1000 Using Multiple Strategies Graphic Organizer
Encourage "math talk", critical thinking, and check for understanding with this graphic organizer using the Common Core math standard for 3rd grade, MCC3.NBT.2 (I can add within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.) Each section of the graphic organizer requires students to use multiple problem solving strategies, show and explain their understanding, use manipulatives, and write about their
2nd - 4th
Arithmetic, Basic Operations, Order of Operations
Subtracting Three Digit Numbers with Regrouping BOOM CARDS™
⭐ Subtracting Three Digit Numbers with Regrouping BOOM CARDS™⭐ ⭐ 15 self checking cards⭐ Download this deck of Boom Cards™ to your teacher account and assign them to your students for a quick check of the standard algorithm for subtraction (with regrouping). Can be used as: Independent WorkCentersExit TicketEarly Finisher WorkInformal AssessmentMore information about Boom Learning™ :To use Boom Cards, you must be connected to the Internet. Boom Cards play on modern browsers (Chrome, Safari, Fir
2nd - 4th
Arithmetic, Basic Operations
CCSS
2.OA.A.1
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