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.
- Free Plan
Roll It! Operations Game
Use this fun game to practice all four operations and/or order of operations.
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Dominate the Dragon – Mental Math Worksheets
Capture your students' interest in math drills for all four operations with these fun dragon-themed differentiated math worksheets.
- Free Plan
Addition and Subtraction Problem Solving Task Cards
Practice solving 1- and 2-step word problems by adding and subtracting 2-digit numbers with this set of 16 task cards.
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3 Digit Subtraction With Regrouping Game Cards
Practice 3-Digit subtraction with regrouping strategies with a printable set of subtraction strategy task cards.
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Combinations of 10 and 20 Posters
Easily recognize combinations of 10 and combinations of 20 with this visual poster set.
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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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Candy Cane Activity - Double Digit Subtraction Tarsia Puzzle
Practice double-digit subtraction with regrouping with a Christmas candy cane activity.
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Thanksgiving Escape Room - The Stolen Feast
Play a Thanksgiving Escape Room game and practice two-and-three digit addition for holiday fun!
- Free Plan
Color by Number – Repeated Addition and Multiplication
Guide your students to connect repeated addition with multiplication by completing this color-by-code multiplication worksheet.
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Spooky 3-Digit Subtraction - Maze Game
Practice three-digit subtraction with regrouping skills with printable Halloween Subtraction Maze worksheets.
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Spooky Subtraction - 3rd Grade Halloween Math Game
Practice triple-digit subtraction with regrouping with an exciting 3rd Grade Halloween Math Game.
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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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Cut & Paste Fact Family Worksheets
Use these fact family houses worksheet set to practice addition and subtraction fact families with your students.
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2-Digit Subtraction Within 100 - Puzzles
Practice a variety of subtraction strategies with a set of printable math puzzles.
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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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Compensation Strategy for Addition Interactive Slide Deck
Teach your students to use the compensation strategy for addition with an interactive teaching slide deck.
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Break Apart Strategy Interactive PowerPoint
Learn all about the break apart strategy with this teaching PowerPoint.
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Addition Strategies Exit Tickets
Assess student knowledge of different addition strategies with these printable exit tickets.
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Addition Strategy Mats
Practice using a variety of addition strategies to add 2-digit numbers.
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Rainbow Number Facts (Making 10) - Board Game
Practice the addition strategy of making ten with this board game.
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Double-Digit Addition Strategies Posters
Remind your students to use different addition strategies with a set of printable two-digit addition strategies.
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Addition to 1,000 Sunflower Interactive Activity
Practice solving addition problems using a variety of addition strategies with this interactive activity.
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Number Talks - Double Digit Addition Task Cards
Build number sense skills with this set of 24 task cards.
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Adding within 1,000 Mystery Image Reveal Worksheet
Practice using the strip diagram to add within 1,000 with this fun mystery picture reveal activity.
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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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Rainbow Facts Zero-Tail Game
Use this fun two-digit addition strategy math game to reinforce the concept of "compatible numbers."
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2-Digit Number of the Day - Spiral Review
Review a variety of second-grade math concepts with a Number of the Day slide deck and recording sheet.
- Free Plan
Break Apart Strategy Worksheet
Practice using the break apart strategy when adding two-digit numbers with this worksheet.
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Break Apart Strategy Addition Dominoes
Practice using the break apart strategy with this set of two-digit addition dominoes.
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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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Multi-Step Addition and Subtraction Word Problem Task Cards
Solve multi-step addition and subtraction word problems with a set of printable math task cards.