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.
- Plus Plan
Candy Cane Activity - Double Digit Subtraction Tarsia Puzzle
Practice double-digit subtraction with regrouping with a Christmas candy cane activity.
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Solving Math Word Problems Strategy Mats
Help your students solve math word problems with this set of strategy mats.
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Addition Strategies Cheat Sheet
Help students understand the different addition strategies with this helpful cheat sheet.
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Adding 2-Digit Numbers Worksheet
Practice 2-digit addition with regrouping with this drill and practice worksheet.
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Fact Family Find and Flip - Addition and Subtraction Up to 20
Addition and subtraction game cards demonstrating the relationship between fact families.
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Double Facts Math Charts - Addition Rhyme Posters
Help your students remember their doubles facts to twenty with a set of printable double facts addition rhyme posters.
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Ten Frame Printable Templates
Use these printable ten frames in various math lessons to reinforce number sense and other essential skills.
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2-Digit Subtraction Model Match-Up
Use a rigorous subtraction matching game to match subtraction word problems with number sentences, bar models, and solutions.
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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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Fact Family Find and Flip - One- and Two-Digit Addition and Subtraction
Addition and subtraction game cards demonstrating the relationship between fact families.
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Subtract From 10 Board Game
Have a “blast” with this space-themed “Subtract From 10” board game that gives your students the practice they need with tens subtraction facts.
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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.
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Subtraction with Ten Frames - Worksheet
Model and subtract numbers to twenty using ten frames with a handy ten-frame subtraction worksheet.
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Addition Strategy - Counting On Worksheet
Solve addition problems in this 2-page Counting On Addition Worksheet.
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Math Mazes - Two-digit Addition
Practice adding two-digit numbers with this set of differentiated math mazes.
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Making Tens Subtraction Worksheet
Find friendly numbers to subtract with a printable subtraction worksheet.
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Subtraction Strategies – Worksheet
Assess your students’ knowledge of subtraction strategies with a subtraction assessment.
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Subtraction Dog – Worksheet
Practice subtraction facts with this set of differentiated worksheets.
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Adding Numbers Game Board: Making Ten Board Game
Introduce this Adding Numbers Game Board: Making Ten board game to your students to give them the practice using the “make a ten” addition strategy.
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Math Keywords for Problem Solving
Help your students decipher math word problems with a set of printable math keyword anchor charts.
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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 Fact Timed Tests & Trackers
Assess and track addition fact fluency with a printable Math Drill Worksheet pack for addition facts.
- 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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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 and Subtraction Word Problems - Match Game
Practice reading, modeling, and solving addition and subtraction word problems with a matching activity.
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Think Addition - Fact Family Worksheets
Use addition to solve subtraction problems with this worksheet.
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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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Subtraction Methods - Printable Mini-Book
Teach and practice various subtraction strategies with a printable 3-digit subtraction mini book.
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3-Digit Addition and Subtraction with Regrouping - Posters
Break down the steps to use regrouping to find a solution with an addition and a subtraction poster.
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Subtraction Using Base 10 Blocks - Worksheet
Subtract two-digit numbers using base-10 blocks with a printable subtraction worksheet.
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Addition on a Number Line - Jump Strategy Slide Deck
Teach your students to add two-digit numbers using the jump strategy with an instructional teaching presentation.
- Plus Plan
Secret Code Number Line - Worksheet
Crack the number line code with five number line codebreaker worksheets to practice number identification, addition, and subtraction.