Debug Algorithm
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Boom Cards Subtract 2 Digit Numbers With & Without Regrouping Using Algorithm
Students demonstrate their knowledge of the subtraction algorithm as they subtract 2-digit numbers with regrouping. ❤️ Students drag the regrouping marks and type the new number of ones and tens into the red boxes. ✅ Next, they subtract the columns and type their answer in the green box. ✅ 20 Cards are self-checking and shuffle each time the deck is played. ✅ An interactive game for iPad, computer, SmartBoard, or projector. ❤️ How about a Boom Cards Math Center? ❤️ Cards are self-correcting
1st - 2nd
Arithmetic, Math, Numbers
CCSS
2.NBT.B.5
Elementary Math Algorithms: Explanation and Practice
Elementary Math Algorithms is your answer to the explanation of math algorithms used in grades 2-6. It contains 26 interactive slides for demonstration and practice along with links to videos for further explanation. Also, included is a math cast created by a former 5th grade student of mine explaining how to do Lattice Multiplication with Decimals. The algorithms covered include; Lattice Multiplication, Partial Products, Column Addition, Partial Sums, Trade-First Subtraction, Counting-Up, Pa
2nd - 6th
Arithmetic, Basic Operations
Three-Digit Subtraction Across Zeros (Scaffolded Regrouping) Digital Boom Cards™
Three-Digit Subtraction Across Zeros (Standard Algorithm with Regrouping) Scaffolded with a TemplateStudents will practice three-digit subtraction across zeroes (subtracting from hundreds) in this fun, summer themed activity. Students will see a three-digit minus three-digit or two-digit math sentence in the standard algorithm (vertical) form. They will fill in each box one at a time to form a three-digit or two-digit difference. Students will SHOW ALL OF THEIR WORK DIRECTLY ON THE SLIDE (incl
2nd - 5th
Arithmetic, Basic Operations, Math
CCSS
2.NBT.B.7
, 3.NBT.A.2
, 4.NBT.B.4
Four-Digit Subtraction Across Zeros (Scaffolded Regrouping) Digital Boom Cards™
Four-Digit Subtraction Across Zeros (Standard Algorithm with Regrouping) Scaffolded with a TemplateStudents will practice four-digit subtraction across zeroes in this fun, summer themed activity. Students will see a four-digit minus three-digit or four-digit math sentence in the standard algorithm (vertical) form. They will fill in each box one at a time to form a four- through two-digit difference.Each four-digit minuend includes 2 to 3 zeros in a row (for example, 8000, 4003, 2600).Students wi
2nd - 5th
Arithmetic, Basic Operations, Math
CCSS
2.NBT.B.7
, 3.NBT.A.2
, 4.NBT.B.4
Two-Digit Subtraction Across Zeros (Scaffolded Regrouping) Digital Boom Cards™
Two-Digit Subtraction Across Zeros (Standard Algorithm with Regrouping) Scaffolded with a TemplateStudents will practice two-digit subtraction across zeroes (subtracting from tens) in this fun, summer themed activity. Students will see a two-digit minus one-digit or two-digit math sentence in the standard algorithm vertical form. They will fill in each box one at a time to form a two-digit or one-digit difference. Students will SHOW ALL OF THEIR WORK DIRECTLY ON THE SLIDE (including the regro
2nd - 5th
Arithmetic, Basic Operations, Math
CCSS
2.NBT.B.7
, 3.NBT.A.2
, 4.NBT.B.4
Add & Subtract 2- & 3-Digit Numbers with & without regrouping | 4th Grade BUNDLE
An (almost) endless source of Worksheets practicing the standard algorithm for adding and subtracting 2-Digit and 3-Digit numbers differentiated at multiple levels with and without regrouping. Print out as many unique worksheets as you need. Your students will never run short of practice. 2-Digit NumbersAddition WorksheetsNo regrouping Regrouping once - 2 Digit plus a 1 digit numberRegrouping twice -Two 2 Digit numbersAdding three 2 Digit numbersAdding four 2 Digit numbers Subtraction Worksh
2nd - 4th
Arithmetic, Basic Operations, Math
CCSS
2.NBT.B.5
, 2.NBT.B.6
, 2.NBT.B.7
+1
50% OFF 2 Digit Subtraction Strategies BUNDLE Boom Cards With & W/O Regrouping
Teach students a variety of strategies as they learn to subtract 2-digit numbers. These Boom Card decks are interactive as students drag base ten blocks, use a hundreds chart, use number lines, drag regrouping marks, and demonstrate how to use the algorithm correctly. ❤️ ❤️ NOTE: There are VIDEO PREVIEWS for EACH Deck in the individual product listings.❤️ 6 Interactive decks are included: ✅ 1) Subtracting 2- Digit Numbers Minus Single Digit Numbers Using the Number Line Strategy ✅
1st - 2nd
Arithmetic, Basic Operations, Math
CCSS
2.NBT.B.5
50% OFF 2-Digit Addition Strategies BUNDLE for Boom Cards With & W/O Regrouping
Teach students a variety of strategies as they learn to add 2-digit numbers. These 2-digit addition Strategies Boom Card decks are interactive as students drag base ten blocks, use a hundreds chart, use number lines, and demonstrate how to use the algorithm correctly. ❤️ ❤️ NOTE: There are VIDEO PREVIEWS for EACH Deck in the individual product listings.❤️ 6 Interactive decks are included: ✅ 1) Adding 2- Digit Numbers Plus Single Digit Numbers Using the Number Line Strategy✅ 2) Adding 2-
1st - 2nd
Arithmetic, Basic Operations, Math
CCSS
2.NBT.B.5
Boom Cards Adding 2 Digit Numbers With & Without Regrouping with Base Ten Blocks
Students use the strategy of moving infinite piles of base ten blocks provided on each card as they add 2-digit numbers. ❤️ Students determine if regrouping is required by checking to see if they have more than 10 ones in the ones section. ✅ If so, they drag ones to make another group of 10. ✅ They also show their knowledge of the algorithm by "carrying" the one to the top of the tens column if necessary. ✅ 20 Cards are self-checking and shuffle each time the deck is played. ✅ An int
1st - 2nd
Arithmetic, Math, Numbers
CCSS
2.NBT.B.5
Addition Using Tens Frames
Addition Ten FramesDo you have students struggling with place value and adding at all different levels? Do you need some support for learners who are struggling to understand how to regroup and carry over? This is the perfect resource for that! It can easily be a print and go activity, or you can print and laminate the playing cards and turn this into a center. This activity is meant to help bridge the gap between understanding how to add with concrete manipulatives and looking at abstract stand
2nd - 4th
Arithmetic, Math, Place Value
CCSS
2.NBT.A.1
, 2.NBT.B.5
, 2.NBT.B.6
+3
Christmas Place Value Activities Bundle
Christmas Place Value Bundle. You get a place value PowerPoint, SmartBoard Activities, and Math Centers in one bundle at a discount. Includes place value ones, hundreds, and thousands. Great for math stations or small group interventions. Printable and digital resources. Created for 1st, 2nd, and 3rd grade math students. Please see previews.You may also like: ⭐ Christmas Addition Crack the Code Fun Practice Sheets⭐ Christmas Playing Cards⭐ Place Value Christmas Math Center Common Core Standa
1st - 3rd
Arithmetic, Basic Operations, Math Test Prep
CCSS
1.NBT.B.2
, 2.NBT.A.1
, 3.NBT.A.2
Place Value and Maps: Continents and States on a Grid
Six activities, each a grid pattern formed by Base 10 Blocks: 100s Flats, 10s Rods, and 1s squares superimposed over an outline map of a continent or state.
Students first estimate the number value contained within the outline. They then count and record the number of Hundreds, Tens, and Ones, and add the total, and write the number in standard form, expanded form, place value form, and in words.
Numbers go into the low 4-digits. Appropriate for students who are learning place value
2nd - 4th
Arithmetic, Basic Operations, Place Value
CCSS
3.NBT.A.2
Everyday Math 2nd Grade Promethean Lesson 4.9 The Partial Sum Algorithim
This flipchart is designed to be a companion to the Everyday Math series for 2nd grade. Mental Math, Math Message, Part 1, and Part 2 are included. It also has a page for differentiated instruction groups. In this lesson:addition fact practice, double digit addition facts, partial sums, ball park estimates, time practice, Fact Extension Game and math boxes. The main focus is to practice addition facts using partial sums.
2nd
Arithmetic, Math, Numbers
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