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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Combinations of 10 and 20 Posters
Easily recognize combinations of 10 and combinations of 20 with this visual poster set.
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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!
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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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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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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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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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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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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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Rainbow Facts Zero-Tail Game
Use this fun two-digit addition strategy math game to reinforce the concept of "compatible numbers."
- 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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Subtraction Tarsia Worksheets- Math Puzzles
Print a set of 7 Tarsia puzzles to practice solving single-to-multi-digit subtraction problems.
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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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Number Bonds Worksheet - Cut and Paste
Practice subtraction up to twenty with a cut-and-paste number bond worksheet.
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Number Talks - Making Ten Task Cards
Build number sense skills with this set of 20 task cards.
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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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Counting Backwards to Subtract - Number Fact Board Game
Practice subtracting by counting backwards with a pair of printable subtraction games.
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Subtraction Bingo (Single and Double-Digit Numbers)
Practice subtracting single and double digit numbers with a fun Subtraction Bingo Game.
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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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Hundreds Chart Color By Number - Subtraction
Practice subtracting single and double-digit numbers with a set of subtraction color by number task cards.
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Subtraction Methods - Printable Mini-Book
Review and practice various subtraction strategies with a printable 3-digit subtraction mini book.
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Number Matching Puzzle - Double Digit Subtraction
A hands-on game to play when practicing double-digit subtraction.
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Subtraction Made Easy: Counting Back on a Number Line — Printable Poster
Provide your students with a daily reminder of the subtraction on a number line strategy with a printable anchor chart.