Encoding and Decoding
3,800+ results
Filters
Grade
Subject
Format
Resource type
Standard
Theme
Language
Programs & methods
Supports
Summer Lemonade Stand Math Decoder I Joke I Repeated Addition - Multiplication
Make math practice extra fun with this Summer Lemonade Stand Math Decoder Activity! Students solve repeated addition or multiplication problems and use a decoder wheel to reveal a funny lemonade-themed joke. What’s Included: Student Worksheets (Repeated Addition and Multiplication versions) Decoder Wheel Answer Keys How It Works: Students solve each math problem carefully. Each correct answer helps them decode a letter. After solving all problems, they use the decoder to reveal the punchli
2nd - 5th
Arithmetic, Mental Math, Numbers
CCSS
2.NBT.B.5
, 4.NBT.B.5
, 5.NBT.B.5
+7
Multi-Digit Addition and Subtraction With Regrouping Digital Escape Room Game
This digital escape room activity for adding and subtracting multi-digit numbers will keep your 4th graders engaged. Practice or review multidigit addition & subtraction with regrouping with a fun worksheet alternative that will have students using their math skills to escape the library. Clever puzzles and decoding challenges encourage active learning and collaboration. Best of all, this escape room has no prep, is self-checking, and fully automated by a Google Form™. Google™ accounts are not r
3rd - 5th
Arithmetic, Math, Other (Math)
CCSS
4.NBT.B.4
4th Grade Christmas Math Activity Digital Escape Room Game The Rogue Reindeer
We've got the perfect math activity to keep your fourth graders engaged before Christmas break! The Case of the Rogue Reindeer will have your class racing to use a variety of 4th grade math skills to save Christmas! A password will be discovered through with a challenging rounding question and word problems requiring division of a three-digit number by a single digit and multiplying a two-digit number by a single-digit. Finding the missing number to form equivalent fractions will lead students t
3rd - 5th
Arithmetic, Basic Operations, Math
CCSS
4.NBT.A.3
, 4.NBT.B.5
, 4.NBT.B.6
+2
Pirate Adventure- Simple Addition and Subtraction
🏴☠️ Ahoy, Teacher! Ready to Turn Math Practice into a Treasure Hunt? Struggling to keep your students engaged during math drills? Transform your classroom into the high seas with this Pirate Adventure Escape Room! This low-prep, high-excitement activity turns simple addition and subtraction into a quest for hidden riches. 💎 The Mission Your students aren't just doing worksheets—they’re treasure hunters! To unlock the final pirate chest, they must solve 28 single-digit addition and subtracti
K - 3rd
Arithmetic, Basic Operations
2nd Grade Math Digital Escape Room Activities Holiday & Seasonal Math Games
These 2nd grade math digital escape rooms are fun and engaging and cover a wide variety of second grade math standards. It can be hard to keep kids focused before a holiday, but these escape rooms are sure to keep students engaged in standards based learning before vacations and school holidays. These online breakouts can be done in-person or virtually, and can be completed as a whole class, in small groups, or by students individually. Best of all, these escape rooms are extremely easy to imple
1st - 3rd
Arithmetic, Basic Operations, Math
CCSS
2.MD.C.8
, 2.NBT.A.1
, 2.NBT.A.1a
+9
3-Digit Addition with Regrouping Math Games Boom™ Cards for 2nd & 3rd Grade
Help your students master 3 Digit Addition with Regrouping Skills using Boom Cards. These digital math games for 2nd & 3rd graders provide include movable answers & self-checking feedback, making learning fun and effective for both students and teachers! Why These 3-Digit Addition Boom Cards Are Perfect for Your Classroom:Instant Feedback: Students receive immediate corrections, ensuring they stay on track while teachers can easily assess their progress.No Prep Needed: These ready-to-use Boom Ca
2nd - 4th
Arithmetic, Basic Operations, Math
CCSS
2.NBT.B.5
, 2.NBT.B.6
, 3.NBT.A.2
+1
2 Step Addition and Subtraction Word Problems within 100 BOOM™ Cards | 2.OA.1
Practice 2-step addition and subtraction word problems within 100 with fun, engaging BOOM™ cards! This deck includes 24 cards perfect for practicing standard 2.OA.1. Four different card types provide a variety of practice solving 2-step word problems with addition and subtraction. BOOM™ cards are self-checking task cards that provide immediate student feedback. BOOM cards can be used on interactive white boards, desktops, chrome books, laptops, iPads, iPhones, Kindle Fire, and more! BOOM cards a
2nd - 3rd
Arithmetic, Basic Operations, Mental Math
CCSS
2.OA.A.1
Number Dots Mega Bundle | Addition & Subtraction Mystery Puzzles + Worksheets
Take your math centers and practice activities to the next level with this Number Dots Math Mega Bundle! This bundle combines hands-on mystery puzzles and printable worksheets for a complete set of resources to practice addition and subtraction, both with and without regrouping. Students tap the dots on each number as they solve problems, building fluency, confidence, and number sense through this engaging visual strategy. With 20 individual products included, this mega bundle is perfect for dif
1st - 6th
Arithmetic, Basic Operations, Math
CCSS
2.NBT.B.5
, 2.NBT.B.7
, 3.NBT.A.2
+1
Multiplication & Division Fact Family Fluency Digital Games Fact Triangles Timed
This Multiplication and Division Fact Fluency Fact Triangles Digital Games Bundle will make mastering multiplication and division facts and fact families fun and motivating with this engaging with timed practice. This resource includes 12 digital fluency games covering multiplication and division fact families 1–12 using fact triangles. Fact triangles are a powerful tool that helps students visually connect multiplication and division relationships. and fact families. Each game is timed, encour
3rd - 5th
Arithmetic, Basic Operations, Mental Math
CCSS
3.OA.C.7
Digital Math Facts Fluency Division & Multiplication Boom Cards Activities
Looking for a way for students to work digitally on their fact fluency for multiplication and division? Would you like your student to focus in on each set of facts comprehensively, so they can build mastery? These digital math fact fluency games for the individual fact sets, such as the one for the three facts, include the same fact with the answer in different spots, so students can go through the deck several times at once to build fluency with their multiplication facts. These are also self
3rd - 6th
Arithmetic, Basic Operations, Math
CCSS
3.OA.C.7
Teaching Slides & Assessments for Checkpoint One Bundle - Standards Based Math
Prepare your students for success on ILEARN Checkpoint One with this comprehensive First Nine Weeks Math Teaching & Assessment Bundle! This all-in-one resource combines engaging instructional slideshows with standards-based assessments, giving teachers everything needed to teach, monitor, and assess student learning throughout the first quarter. Designed to support learners at every proficiency level, this bundle includes structured teaching slides, pre-assessments, post-assessments, leveled p
2nd - 4th
Applied Math, Arithmetic, Math Test Prep
CCSS
2.NBT.A.1
, 3.NBT.A.1
, 3.NBT.A.2
Addition and Subtraction Word Problems within 100 BOOM™ Cards | 2.OA.1
Practice addition and subtraction word problems within 100 with fun, engaging BOOM™ cards! This deck includes 24 cards perfect for practicing standard 2.OA.1. Included problems are one-step addition or subtraction within 100, including problems with unknown numbers in different positions. BOOM™ cards are self-checking task cards that provide immediate student feedback. BOOM cards can be used on interactive white boards, desktops, chrome books, laptops, iPads, iPhones, Kindle Fire, and more! BOO
2nd - 3rd
Arithmetic, Basic Operations, Mental Math
CCSS
2.OA.A.1
Estimation in technology and coding - Mental Math Practice
Strengthen number sense with structured mental math activities. **Topics Included:** • Thank You • Advanced estimation in word problems • Compatible numbers in division • Converting fractions and decimals mentally • Division estimation strategies • Doubling and halving strategies • Doubling patterns and quick estimates • Estimating angles in geometry • Estimating distance • Estimating distance using maps and scale • Estimating division • Estimating fractions of sets • Estimating from statistica
3rd - 8th
Arithmetic, Basic Operations, Mental Math
Quick area and perimeter estimation - Mental Math Worksheets
Build strong number sense through structured mental math exercises. **Topics Included:** • Thank You • Checking the reasonableness of answers • Compatible numbers in division • Converting fractions and decimals mentally • Division estimation strategies • Doubling and halving strategies • Estimating multiplication • Estimating percent increase and decrease • Estimating percentages • Estimating speed and time • Estimating sums and differences • Estimating surface area and volume • Estimating temp
3rd - 8th
Arithmetic, Basic Operations, Mental Math
Mastering Mental Math: Estimation in data and graphs
Perfect for reinforcing estimation and mental math strategies across Grades 3–8. 📌 **Topics Included:** • Thank You • Advanced estimation in word problems • Checking the reasonableness of answers • Combining front end and compatible estimation • Compatible numbers in division • Converting fractions and decimals mentally • Estimating lengths areas and perimeters • Estimating percent increase and decrease • Estimating percentages • Estimating products and quotients • Estimating subtraction • Esti
3rd - 8th
Arithmetic, Basic Operations, Mental Math
Estimation & Number Sense: Estimating percentages
Give students repeated opportunities to practice efficient math strategies. 📌 **Topics Included:** • Thank You • Combining front end and compatible estimation • Converting fractions and decimals mentally • Doubling and halving strategies • Doubling patterns and quick estimates • Estimating distance • Estimating multiplication • Estimating percent increase and decrease • Estimating percentages • Estimating products and quotients • Estimating speed and time • Estimating square roots • Estimating
3rd - 8th
Arithmetic, Basic Operations, Mental Math
Using diagrams tables and models Practice Pack
Help students strengthen essential Grade 3 math skills with focused arithmetic practice. **Topics Included:** • Thank You • Adding within 1000 with and without regrouping • Checking answers for reasonableness • Choosing appropriate measurement tools • Classifying 3d shapes by faces edges and vertices • Communicating math thinking clearly • Comparing and ordering numbers to 1000 • Creating equivalent fractions • Decomposing numbers place value strategies • Equivalent fractions eg 24 • Estimating
3rd
Arithmetic, Basic Operations, Mental Math
Representing multiplication with arrays and equal groups - Basic Operations Revi
Build confidence in core math skills through engaging arithmetic worksheets. **Topics Included:** • Thank You • Applying math in real world contexts shopping time distance • Checking work and using estimation • Comparing area and perimeter • Comparing fractions to benchmarks 1 • Composing and decomposing shapes • Counting by 2s 5s 10s and 100s • Dividing within 100 • Equivalent fractions eg 24 • Estimating length and weight • Estimating sums and differences • Finding area by multiplication or a
3rd
Arithmetic, Basic Operations, Mental Math
BOOM™ CARDS No Prep MATH GAMES: 2-Digit Addition with Regrouping 2nd & 3rd Grade
Upgrade your math curriculum with our interactive 2 Digit Addition with Regrouping BOOM CARDS! A fun and interactive way for students to master 2-digit addition, these 25 digital cards offer strong self-correction and real time feedback that make learning effortless. Plus, this digital set takes away all of the hassle of paper grading leaving you more time on your hands.Includes: 25 BOOM CardsIT TAKES 30 SECONDS TO SET UP YOUR FREE BOOM ACCOUNT: 1. Click on the green box marked “Create” on the B
2nd - 3rd
Arithmetic, Basic Operations, Math
CCSS
2.NBT.B.5
, 2.NBT.B.6
, 3.NBT.A.2
+1
Two Digit Addition within 100 with and without regrouping BOOM Cards 2nd Grade
Help your students practice 2 digit addition with and without regrouping with fun, engaging, BOOM™ cards! This deck includes 30 cards perfect for practicing standard 2.NBT.5. Multiple card types included to provide a variety of practice. BOOM™ cards are self-checking task cards that provide immediate student feedback. BOOM cards can be used on interactive white boards, desktops, chrome books, laptops, iPads, iPhones, Kindle Fire, and more! BOOM cards are perfect for center work, students needin
2nd - 3rd
Arithmetic, Basic Operations, Numbers
CCSS
2.NBT.B.5
Also included in: Numbers and Operations 2nd Grade BOOM Card BUNDLE
Easter 3-Digit Addition & Subtraction Mega Bundle | 12 Worksheet Sets + Bonus
Save BIG with this ultimate Easter-themed 3-digit addition and subtraction Mega Bundle! This comprehensive bundle includes 12 complete worksheet sets (20 pages each) plus a FREE Expanded Form bonus set, giving you a total of 240+ pages of engaging math practice with full answer keys. Students will practice 3-digit addition and subtraction skills with and without regrouping, number sense, and place value up to 1000 — all in a fun Easter theme. Perfect for spring math centers, homework, morning wo
2nd - 4th
Arithmetic, Basic Operations, Place Value
Easter 2-Digit Addition & Subtraction Mega Bundle | 240 Worksheets + Answer Keys
Easter 2-Digit Addition & Subtraction Mega Bundle | 240 Worksheets + Answer Keys | Regrouping & Make 100 | PDF + PNG Save time and money with this Easter 2-Digit Addition & Subtraction Mega Bundle! This massive printable math pack includes 12 worksheet sets (240 pages total) + answer keys, covering 2-digit addition and subtraction with and without regrouping, mixed operations, and a fun Number Search – Make 100 activity. These no-prep, Easter-themed worksheets help students build number sense, p
2nd - 3rd
Arithmetic, Basic Operations, Place Value
Doubling and halving strategies — Basic Operations Review
✖️ Reinforce core arithmetic skills with engaging review. 📌 **Topics Included:** • Arrays and equal groups • Arrays and the area connection • Assessing multiplication and division fluency • Building a strong math identity • Building fluency through games • Building fluency with confidence • Capstone integrated fluency application • Checking and correcting fluency errors • Checking reasonableness of answers • Choosing efficient fluency strategies • Choosing the best strategy • Common multiplicat
3rd - 5th
Arithmetic, Basic Operations, Mental Math
Unit Rate Problem Solving: Convert Rates Between Hours And Kilometers Unit Rate
Support strong problem-solving skills with ratio and unit rate questions that make math feel practical. 📌 Topics Included: • Better Buy With Multipacks Unit Rate Better Buy Multipack • Check The Unit Rate Unit Rate Double Check • Choose The Correct Unit Rate Unit Rate Choose Correct • Compare Three Unit Rates Unit Rate Compare Three Options • Compare Unit Rates Unit Rate Comparison • Convert Rates Between Hours And Kilometers Unit Rate Hours To Kilometers • Correct The Unit Rate Mistake Advance
3rd
Applied Math, Arithmetic, Other (Math)
Showing 1-24 of 3,800+ results
TPT is the largest marketplace for PreK-12 resources, powered by a community of educators.
IXL family of brands