Debug Algorithm
20+ results
Filters
Grade
Subject
Format
Resource type
Standard
Audience
2nd Grade: Number Talks- Addition/Subtraction Strategies (NO Algorithm)
Engage Your 2nd Graders with Fun and Critical Math Thinking!Are you a 2nd-grade teacher looking to make your math lessons more exciting and engaging? "Number Talks" is the perfect tool to transform your math block and deepen your students' understanding of math concepts. Why Number Talks?Number Talks is an interactive way for students to share their mental math strategies with their classmates. Imagine one student solving an equation in a unique way, while another student finds a different metho
2nd
Mental Math, Other (Math)
Also included in: 2nd Grade: Number Talks- BUNDLE 200+ SLIDES
2nd Grade: Number Talks- Addition/Subtraction Strategies With Algorithm
Engage Your 2nd Graders with Fun and Critical Math Thinking!Are you a 2nd-grade teacher looking to make your math lessons more exciting and engaging? "Number Talks" is the perfect tool to transform your math block and deepen your students' understanding of math concepts. Why Number Talks?Number Talks is an interactive way for students to share their mental math strategies with their classmates. Imagine one student solving an equation in a unique way, while another student finds a different metho
2nd
Mental Math, Other (Math)
Also included in: 2nd Grade: Number Talks- BUNDLE 200+ SLIDES
Standard Algorithm Long Multiplication Practice
My product contains: - 5 Long Multiplication Questions - 3 Long Multiplication Word Problems
PreK - 5th
Math, Mental Math
Addition Task Cards Regrouping
Double digit regrouping addition math center task cards, 64 vertical algorithm plus sums and 20 word problems for second and third grade. All on super cute pet-themed cards that your students will love! Simply print, laminate (if you wish) and pop into math center tubs. No thinking required! Students can either write their answers on the cards in whiteboard markers, or copy the sums into their workbooks, mini whiteboards or paper. Use year round to review this concept and ensure students are
2nd - 4th
Math, Math Test Prep, Mental Math
Also included in: Third Grade Math Worksheets Packet
Addition Strategy: Make Ten Facts Using Tens Frame Visual Model
An animated powerpoint that clearly makes the connection between the algorithm and the combination of objects that make ten. Great resource for reinforcing mental math strategies! Common Core Standards for kindergarten and first grade are identified. The visual model used is the tens frames model.
K - 2nd
Mental Math
CCSS
1.NBT.B.2a
, K.OA.A.4
Regrouping Addition Three Digits
Three digit regrouping addition math center task cards, 64 vertical algorithm plus sums and 20 word problems for third and fourth grade. All on super cute pet-themed cards that your students will love! Simply print, laminate and pop into math center tubs. No thinking required! Students can either write their answers on the cards in whiteboard markers, or copy the sums into their workbooks, mini whiteboards or paper. These are great as a math rotation, great for extension for chi
2nd - 5th
Math, Math Test Prep, Mental Math
Subtracting Fractions Bingo
Subtracting Fractions Bingo with Like Denominators - 20 student game cards - 20 slides featuring bright picture representations of fractions set up as subtraction algorithms
2nd - 4th
Fractions, Math, Mental Math
Unit 1: Number and Operations in Base Ten - 3rd grade
Standards:
MCC.3.NBT.1 Use place value understanding to round whole numbers to the nearest 10 or 100.
MCC.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.
This is a CFA pr/post test I created for the standards above. I give the test at the very beginning and then give the post at after I teach the unit.
2nd - 7th
Arithmetic, Mental Math, Place Value
Can you find the difference?
Directions: draw 6 cards to make two 3-digit numbers. Record both numbers on an open number line. Find the difference between the two numbers. Use the algorithm to check your work!
1st - 3rd
Basic Operations, Mental Math, Place Value
CCSS
2.NBT.A.1
, 2.NBT.A.2
, 2.NBT.A.4
+4
Subtraction- Two Digit Numbers with Common Core Strategies
Teaching Common Core Math makes sense. Teaching with meaning, without memorization. This power point has seven strategies to use with common core instruction. These methods encourage students to solve problems without the traditional algorithm. Post it on your website for parents to assist their children, use it in the classroom, print it for student as they go on vacation, they can be posters, or at a center, or even to assist with student math journals.
1st - 3rd
Basic Operations, Mental Math, Place Value
Using Mental Math Strategies to Solve Addition Problems With Larger Numbers
This lesson is intended to be covered over a two-day period with a group of second or third grade students. It could also be used with students who are having difficulty mastering the traditional algorithm for adding larger numbers without and with regrouping. The first part of the lesson covers the adding left to right mental math strategy. The second part of the lesson covers the break apart or decomposing mental math strategy. There is an accompanying worksheet that matches exactly this prese
2nd - 3rd
Basic Operations, Math, Mental Math
CCSS
2.NBT.A.1
, 2.NBT.A.1a
, 2.NBT.A.1b
+4
Pirates vs. Vikings: Addition to 150
If you want to get your kids excited about practicing addition, then have them pick a side: Pirates vs. Vikings! I designed this activity to engage students while deepening their understanding of number sense, without using the standard algorithm. It can be used whole group, small group, or as a math station with a partner. Also, you could ask kids to use mental math strategies, use scratch paper, or allow them to rewrite the problems - the choice is yours!
I plan on making a companion product,
1st - 3rd
Math, Mental Math, Place Value
Addition and Subtraction PowerPoint Math Game
Your students will think it’s a game; a chance to “take on the teacher.” You know that by playing this game, your students will review and practice borrowing and carrying skills and practice the steps of the addition and subtraction algorithms.
“Build a House”™ is a fun, fast-paced math game with the same rules as “Hangman,” but instead of your students calling out letters, they call out numbers. Instead of hanging a poor, unfortunate stickperson, incorrect guesses will build you a house.
Pick
2nd - 3rd
Arithmetic, Basic Operations, Mental Math
CCSS
2.NBT.B.5
, 2.NBT.B.6
, 2.NBT.B.7
+2
MULTIPLICATION TEACHING POWERPOINT
This is a 53 slide teaching power point that goes through the progression of multiplication. The power point can be split into teaching sessions or can be used by teacher for ideas. The power point begins by looking at groups and sets etc... and ends with written methods such as the grid method and compact algorithms.
1st - 5th
Basic Operations, Mental Math, Numbers
PowerPoint Multiplication Game Flash Cards (Randomly Generated)
This PowerPoint Quiz Game Template with only one slide that would generate questions for you automatically. Randomly Generate Multiplication Flash Cards to create an Arithmetic Maths Quiz Game in PowerPoint Features: Excel Sheet Analysis of students performance after game is over.Set Custom Range of Numbers for example, test students only from 7 to 23.Algorithm prevents easy questions such as multiples of 10.Customisable Countdown TimerTechnical Details: .pptm file with macros, works only in Mi
2nd - 8th
Applied Math, Math, Mental Math
CPA Multiplication Strategy Posters | Sea Theme | Concrete Pictorial Abstract
Help students tackle multiplication with confidence using these CPA Multiplication Strategy Posters—designed to model a range of methods for understanding multiplication using the proven Concrete–Pictorial–Abstract approach. With a calm ocean-inspired design, these visuals make math accessible, consistent, and beautiful. This resource guides students through multiple ways to solve multiplication problems—from MAB blocks and arrays to regions, and formal algorithms. Whether you're working on reg
1st - 8th
Basic Operations, Mental Math, Other (Math)
CPA Division Strategy Posters | Sea Theme | Concrete Pictorial Abstract Math
Help students tackle division with confidence using these CPA Division Strategy Posters—designed to model a range of methods for understanding division using the proven Concrete–Pictorial–Abstract approach. With a calm ocean-inspired design, these visuals make math accessible, consistent, and beautiful. This resource guides students through multiple ways to solve division problems—from MAB blocks and length models to number lines, and formal algorithms. Whether you're working on regrouping, nu
1st - 8th
Basic Operations, Mental Math, Other (Math)
Subtraction Number Strings Bundle- Growing!
*30 days worth of number strings geared to the third grade subtraction skills. Number Strings are research-based Number Talks that have shown to improve number sense and mathematical fluency. This resource can be used as a tier 1 daily routine or as intervention for older students. I have used this resource in grades 2-6 to improve number sense and operational accuracy. Can be used with other number sense routines to further enhance number sense! This can be a short unit OR used as intervention
2nd - 6th
Algebra, Mental Math
CCSS
2.NBT.B.5
, 2.NBT.B.7
, 2.NBT.B.9
+9
2nd Grade Subtraction Number Strings- Number Sense
Number Strings are research-based Number Talks that have shown to improve number sense and mathematical fluency. This resource can be used as a tier 1 daily routine or as intervention for older students. I have used this resource in grades 2-6 to improve number sense and operational accuracy. 2nd grade Subtraction Skills:Skill 1: Subtract a one- or two-digit number from a two-digit number, without renaming. Skill 2: Subtract a one-digit number from a two-digit number of 20 or more, with renamin
2nd - 6th
Math, Mental Math
CCSS
2.NBT.B.5
, 2.NBT.B.6
, 2.NBT.B.7
+11
Also included in: Subtraction Number Strings Bundle- Growing!
Double Digit Addition No Regrouping Task Cards
Double digit additon math center task cards to 100 without regrouping, 64 vertical algorithum plus sums and 20 word problems for end of first grade and for second grade. All on super cute pet-themed cards that your students will love! Simply print, laminate (if you wish) and pop into math center tubs. No thinking required! Students can either write their answers on the cards in whiteboard markers, or copy the sums into their workbooks, mini whiteboards or paper. Don't forget to leave fee
2nd - 3rd
Math, Math Test Prep, Mental Math
Showing 1-20 of 20+ results
TPT is the largest marketplace for PreK-12 resources, powered by a community of educators.
IXL family of brands