Math 2.4
Number and operations. The student applies mathematical process standards to develop and use strategies and methods for whole number computations in order to solve addition and subtraction problems with efficiency and accuracy. The student is expected to:
- (1) recall basic facts to add and subtract within 20 with automaticity;
- (A) add up to four two-digit numbers and subtract two-digit numbers using mental strategies and algorithms based on knowledge of place value and properties of operations;
- (B) solve one-step and multi-step word problems involving addition and subtraction within 1,000 using a variety of strategies based on place value, including algorithms; and
- (C) generate and solve problem situations for a given mathematical number sentence involving addition and subtraction of whole numbers within 1,000.
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2-Digit + 1-Digit Numbers Addition Worksheet
Practice addition involving 2- and 1-digit numbers with this drill and practice worksheet.
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Subtracting 2-Digit Numbers Worksheet
Practice 2-digit subtraction with regrouping with this drill and practice worksheet.
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Addition and Subtraction Minute Math Booklet
Warm-up (or assess) with this 10-page booklet of addition and subtraction drills.
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Making Ten Cut and Paste Worksheet
A cut and paste worksheet to practice finding the missing addend when making ten.
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Number Talks - Balancing Equations Task Cards
Build number sense skills with this set of 40 task cards.
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Daily Problem-Solving - Multi-Step Word Problems (2-3)
Boost your students’ problem-solving skills with rigorous daily review of multi-step word problems for 2nd and 3rd grade.
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Addition and Subtraction Word Problem Task Cards (Numbers 1-50)
Use a range of addition and subtraction strategies to solve twenty word problems that contain numbers 1–50.
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Addition Strategies Posters
Create an "addition strategies display" for your students with this set of 7 posters.
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Mathematics Vocabulary Posters
A teaching resource to help students identify the associated vocabulary for mathematical operations.
- Free Plan
Problem Solving Mat
A problem solving mat to help guide students when solving word problems.
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10 Problem Solving Strategies Posters
Boost problem solving skills and remind your students to use their strategies with our Problem Solving Strategy Posters.
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Friends of 10 Addition Poster Bundle
Print the ultimate Friends of 10 poster bundle with 10 printable classroom posters designed to show students how different combinations of numbers connect to make the same number.
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Addition Algorithm PowerPoint Presentation
Use this editable interactive teaching presentation with your students when explaining how to use the addition algorithm with regrouping.
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Spooky Sums Tarsia Puzzle - 3 Digit Addition
Practice three-digit addition skills with a Halloween pumpkin tarsia puzzle.
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Fact Family Houses Worksheet Pack
Use these fact family houses worksheet set to practice addition and subtraction fact families with your students.
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Addition by Regrouping Classroom Poster
Learn the steps to addition with regrouping with this simple classroom poster.
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Addition Strategies Exit Tickets
Assess student knowledge of different addition strategies with these printable exit tickets.
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Double Dinos - Using Doubles Facts to Add Near Doubles Worksheet
Practice the “near doubles” addition strategy to solve addition problems to 20.
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Number Talks - Double Digit Subtraction Task Cards
Encourage the use of mental math strategies with 2-digit subtraction number talks task cards.
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Decomposing Numbers - Subtraction Teaching Slides
Challenge students to decompose numbers to mentally solve two-digit subtraction problems with a teaching presentation.
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Making Monsters Subtraction - Halloween Math Worksheet
Have some spooky subtraction fun with three differentiated Halloween subtraction worksheets.
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Subtracting 2-Digit Numbers Task Cards
Practice 2-digit subtraction with this set of 18 task cards.
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Math Graphic Organizers - Printable Work Mats
Practice working on specific math concepts with our set of 5 printable math graphic organizers.
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Addition and Subtraction Work Mat
Practice addition and subtraction concepts daily with a printable work mat for students.
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Subtraction Strategies Puzzle Match
Practice identifying and using different subtraction strategies with a set of printable math puzzles.
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"March Mathness" Basketball Math Craft - Addition
Practice 2-3 digit addition (with and without regrouping) with a fun "March Mathness" craft activity.
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2-Digit Addition Color by Number- Halloween Mystery Picture
Celebrate the coming of Halloween and practice adding 2-digit numbers up to 99 with a set of addition color by number worksheets.
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Addition to 10 Modeling Mats
Familiarize students with adding single-digit numbers using this set of practice mats.
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Basic Fact Cards
A set of 72 basic addition, subtraction, multiplication, and division fact cards.
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Ten is a Match! - Memory-Style Game
Practice matching two numbers that add up to 10 with this set of 24 number cards.
- Free Plan
Cover Up! - Addition Facts Game
Develop a love of addition facts with this multiplayer Valentine’s Day board game.
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Missing Addend Picture Puzzle – Level 3
Solve the missing addition sentence by matching the addend with its equation, completing the puzzle.