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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What is a BOOM CARD?
Boom Cards play on moder
1st - 3rd
Arithmetic, Math, Place Value
CCSS
2.NBT.B.5
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
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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
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
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
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
2-Digit Addition & Subtraction Easter Worksheet FREEBIE
Looking for a quick, engaging Easter math activity? This FREE 2-digit addition and subtraction worksheet is perfect for reinforcing math skills in a fun and seasonal way! Students will solve 8 problems using the standard algorithm while enjoying a cute Easter “peeps” theme. This no-prep activity is ideal for morning work, math centers, homework, or a quick review. What’s Included:1 printable worksheet4 addition problems (2-digit)4 subtraction problems (2-digit)Fun Easter-themed designSkills Cov
1st - 3rd
Arithmetic, Basic Operations, Mental Math
CCSS
2.NBT.B.5
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
Addition and Subtraction Graphic Organizers
Your kiddos can do it, they just need a place to organize their thoughts. Because each student takes their own path, these SEVEN different graphic organizers will allow you to meet each student where they are at. This bundle includes the standard algorithm, open number lines, place value using a 120's chart, the arrow way, the place value chip method, and more! Print them, laminate them, slide them into a pouch, or post them around the room as reminders for your students. At less than fifteen ce
1st - 5th
Arithmetic, Math, Place Value
Addition (Stacked) — Easy
50 traditional column-format addition worksheets with answer keys! Numbers 1–10, displayed in the classic stacked style students learn in school — top number, plus sign, second number, rule line, blank answer box. 4 problems per row, 20 per page. Perfect for building the habit of the standard algorithm in Grades 1–2.
1st - 4th
Arithmetic
Additive Strategies – Sequence of Learning (NSW Curriculum)
This resource is a clear, structured reference guide for teachers outlining the developmental progression of additive strategies from Early Stage 1 to Stage 3, aligned to the NSW Mathematics curriculum. Rather than isolated strategies or lesson ideas, this document maps how additive thinking develops over time, showing the conceptual links between counting, part–whole understanding, equality, mental strategies, written algorithms, and problem solving. It is designed to support professional learn
K - 7th
Arithmetic, Basic Operations, Numbers
Construction Math - Grade One Addition and Subtraction to 20 Worksheets
Construction Math - Addition and Subtraction to 20 Worksheets This is a fun set of 3 worksheets I made for my boy who likes trucks and diggers and vechicles. There are 3 no prep black and white printables, they are all varied so there is a lot of fun to be had. See below for more details. Addition to 20 - use the pictures of help you add. Addition to 20 - vertical algorithms road sign themed Subtraction to 20 - there is a numberline provided to help you add. These resources can be used in a var
K - 2nd
Arithmetic, Math, Numbers
CCSS
1.OA.A.1
, 1.OA.C.6
Beginning Addition / Part Part Whole Activities FREEBIE!!! Conceptual Math
Have You Tried Constructivist Math Bro? Rethink Math instruction. What if students could gain a deeper understanding of number relationships without the drills or endless worksheets? Is there a way for students to actually enjoy math instruction, and learn? Is it time to rethink traditional math instruction? YES!! Allow students to actually explore math and numbers in a way that will help them SEE the way numbers work and gain an understanding that will build a foundation that will enable you to
PreK - 1st
Arithmetic, Math, Mental Math
CCSS
K.CC.A.2
, K.CC.A.3
, K.CC.B.4
+8
*FREE* Unicorn Math | 2-Digit Addition No Regrouping | Expanded Form | 1-2 Grade
Give your students a confidence boost with this FREE sample of my best-selling 2-Digit Addition Worksheets! These pages use the Expanded Form Strategy (decomposition) to help students visually understand place value while adding numbers without regrouping. 💖 Love this freebie? 👉[Click here to get the FULL 50-Page version with even more practice!] 🦄🌟 ✨ What is the Expanded Form Strategy? As seen in the worksheets, students break numbers down into Tens and Ones (e.g.56 = 50 + 6) before addi
1st - 2nd
Arithmetic, Basic Operations, Place Value
CCSS
1.NBT.C.4
, 2.NBT.A.3
, 2.NBT.B.5
1st Grade Common Core Addition and Subtraction using number bond
We hope you will find this product useful. We are constantly reviewing our products, so please drop a note in our store to let us know how we are doing. We appreciate your feedback. If you have any questions regarding our product, please feel free to email us at info@teachablemath.com
This free download is an excerpt from our Addition and Subtraction (numbers 0 to 100) worksheet set, covering Common Core Standards 1.OA and 1.NBT.
The Common Core encourages learners to explore multiple ways to
1st
Arithmetic, Math, Other (Math)
CCSS
1.OA.A.1
, 1.OA.C.5
, 1.OA.C.6
Grille d'observations en mathématiques
Cette grille concerne les éléments sous-jacents au dénombrement et à la quantité, concepts devant être acquis au début du primaire. Leur compréhension influencera l’apprentissage des mathématiques, d’où l’importance de prendre le temps de vérifier ces concepts chez les élèves.
K - 2nd
Arithmetic, Math, Numbers
1re-2e année - Le nombre du jour
Ce produit vous permettra de travailler les notions d'arithmétique avec vos élèves. C'est une activité idéale comme routine du matin ou au début de la période de mathématiques. Pour l'utiliser, vous pouvez: Imprimer plusieurs copies pour chaque élève et les placer dans un duo-tang.Placer une copie pour chaque élève dans une pochette transparente (ou la plastifier). L'élève pourra écrire avec un feutre effaçable.Si vous aimez mes produits, n'hésitez pas à vous abonner à ma boutique.
1st - 2nd
Arithmetic, Math
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