Debug Algorithm
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Programs & methods
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
Number Operations & Terminology: Long Division Quotient • Standard Algorithm
Number Operations & Terminology: Long Division Quotient • Standard Algorithm • SEMiPRO Elementary Montessori-inspired printable Mental Math help (2 printable pages + key):Long Division feeling a bit rusty? A great review for the older student. This resource guides young mathematicians to: Review Long Division step by step instructionsCompare work to an example of a completed problemReview precise math terminology among all four operationsEight practice problems included.Part of the Math Learning
4th - 6th
Basic Operations, Math, Mental Math
CCSS
4.NBT.B.6
, 5.NBT.B.6
Number Operations & Terminology: Subtracting Multi-Digit • Standard Algorithm
Number Operations & Terminology: Subtracting Multi-Digit • Standard Algorithm Review • ROOKIE Montessori-inspired printable Mental Math help (2 printable pages + key):Subtraction feeling a bit rusty? A great review for the older student. This resource guides young mathematicians to: Review Subtracting multi-digit numbers step by step instructionsCompare work to an example of a completed problemReview precise math terminology among all four operationsEight practice problems included.Included is a
3rd - 5th
Basic Operations, Math, Mental Math
CCSS
3.NBT.A.2
, 4.NBT.B.4
Number Operations & Terminology: Category Multiplication • Standard Algorithm
Number Operations & Terminology: Category Multiplication • Standard Algorithm Review • ROOKIE Montessori-inspired printable Mental Math help (2 printable pages + key):Multiplication feeling a bit rusty? A great review for the older student. This resource guides young mathematicians to: Review multiplying multi-digit numbers with step by step instructionsCompare their work to an example of a completed problemReview precise math terminology among all four operationsEight practice problems included
3rd - 5th
Basic Operations, Math, Mental Math
CCSS
4.NBT.B.5
, 5.NBT.B.5
Dividing Decimals Fold-Up | Step-by-Step | Grades 4–6
✅ Teach Decimal Division with This Easy-to-Use Fold-Up for Grades 4–6!Help students successfully divide decimals using the standard algorithm with clear, structured support. This interactive fold-up walks learners step-by-step through placing the decimal correctly and handling different division situations so they can focus on understanding instead of guessing. Perfect for math notebooks, reteaching, or reference pages, this resource builds confidence as students tackle decimal ÷ whole numbers,
4th - 6th
Basic Operations, Decimals, Math Test Prep
CCSS
5.NBT.B.7
, 6.NS.B.2
Also included in: 5th Grade Math Fold-Up Bundle | 41 Interactive Notebook Activities
Reasoning Puzzles: 2 by 2 Digit Multiplication, Area Model, Partial Product Task
Deepen your student's understanding of two by one digit and two by two digit multiplication with these true false puzzles that feature area model, arrays, partial product and that standard algorithm. These puzzles can just be printed and handed out to students to get started. Check out the preview to try a free one. This is the second in the multiplication series. After learning about the meaning of multiplication in the first set, students will be ready to move on to both single and double dig
3rd - 5th
Basic Operations, Math, Math Test Prep
CCSS
4.NBT.B.5
, 4.NBT.B.6
4.NBT.4 Math Maze | Adding & Subtracting Multi-Digit Whole Numbers
Engage your students with this fun and interactive math maze while they practice adding and subtracting multi-digit whole numbers up to 100,000! Aligned with North Carolina Standard NC.4.NBT.4, this maze helps students build fluency with the standard algorithm and place value understanding in an exciting, puzzle-like format. ✨ What’s Included 1 Math Maze worksheet with a correct pathway of 16–17 problems Answer key for quick grading or self-checking Student directions (easy-to-follow, kid-f
4th
Basic Operations
CCSS
4.NBT.B.4
Halloween Color by Code 4th Grade Math TEKS 4.4A STAAR Review Activities
🎃 Halloween Color by Code | 4th Grade Math TEKS 4.4A STAAR Review Turn Halloween week into a math celebration with this Halloween Color by Code 4th Grade Math TEKS 4.4A STAAR Review! This print-and-go resource gives students hands-on practice with adding and subtracting whole numbers and decimals to the hundredths place using the standard algorithm. Engaging Halloween-themed word problems featuring witches, ghosts, mummies, and vampires make review fun and purposeful. Each of the five dif
4th
Basic Operations
Also included in: 4th Grade STAAR Math Holiday Bundle | Addition and Subtraction Review
Christmas Color by Code 4th Grade Math Addition and Subtraction STAAR Review
🎄 Christmas Color by Code | 4th Grade Math TEKS 4.4A STAAR ReviewBring joy and rigor to your December math block with this Christmas Color by Code 4th Grade Math TEKS 4.4A STAAR Review! This print-and-go resource gives students meaningful practice with adding and subtracting whole numbers and decimals to the hundredths place using the standard algorithm—all wrapped in a festive holiday theme. Students solve real-world Christmas word problems about holiday shopping, baking, decorating, and gi
4th
Arithmetic, Basic Operations
CCSS
4.NBT.B.4
Also included in: 4th Grade STAAR Math Holiday Bundle | Addition and Subtraction Review
Thanksgiving Color by Code 4th Grade Math Addition and Subtraction STAAR Review
🦃 Thanksgiving Color by Code | 4th Grade Math TEKS 4.4A STAAR Review Make Thanksgiving week meaningful and fun with this Thanksgiving Color by Code 4th Grade Math TEKS 4.4A STAAR Review! This print-and-go resource gives your students hands-on, differentiated practice with adding and subtracting whole numbers and decimals to the hundredths place using the standard algorithm—perfect for spiral review or seasonal engagement before the break. With real-world Thanksgiving-themed word problem
4th
Basic Operations
CCSS
4.NBT.B.4
Also included in: 4th Grade STAAR Math Holiday Bundle | Addition and Subtraction Review
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