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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Adding Doubles Board Game
Play our adding doubles board game to give your students a chance to practice their addition fact fluency.
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Word Problems Addition and Subtraction Escape Room
Search for a lost treasure in our word problems addition and subtraction escape room that will give your students varied practice adding and subtracting one and two-digit numbers.
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2 Digit Subtraction - Flip It Card Game
Practice subtracting two-digit numbers with and without regrouping with a fun game of Subtraction Flip It!
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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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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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Two-Digit Addition Using the Split Strategy – Poster and Worksheets
Teach your students how to use partitioning for two-digit addition with this ice cream-themed poster and worksheets.
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Subtraction Fact Fluency Assessments
Assess and track subtraction fact fluency with a printable Math Fact Fluency program for subtraction facts.
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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 Sums Tarsia Puzzle - 3 Digit Addition
Practice three-digit addition skills with a Halloween pumpkin tarsia puzzle.
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Addition Strategy Mats
Practice using a variety of addition strategies to add 2-digit numbers.
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Blast Off Addition Strategy Interactive Activity
Practice four different addition strategies in this fun space-themed interactive activity.
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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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Exploring Subtraction Strategies Instructional Slide Deck
Explore and teach multiple subtraction strategies with an instructional slide deck
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Subtraction Game - 2-Digit Subtraction Dominoes
Use this printable set of double-digit subtraction dominoes to practice a variety of subtraction strategies.
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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.
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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.
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Addition and Subtraction Fact Families Teaching Presentation
Use this 19-slide editable slide deck when introducing addition and subtraction fact families to your students.
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Jump Strategy - Number Line Addition Worksheet
Practice adding two-digit numbers with regrouping using a number line and the jump strategy with a printable number line worksheet.
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Friends of 10 - Addition Match-up Activity
A set of 22 matching cards to explore the number combinations of 10.
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Adding 2-Digit Numbers Task Cards
Practice adding 2-digit numbers with this set of 18 number sentence task cards.
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Multi-Step Problem Solving Worksheet
Solve a multi-step problem and explain the mathematical reasoning behind the process with this simple assessment worksheet.
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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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Making Ten Teaching Slide Deck
A 14-slide PowerPoint that uses engaging animations to walk students through the 'making ten' addition strategy.
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Add and Reveal PowerPoint – Addition Practice
A PowerPoint for students to interact with when practicing addition facts.
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Basic Fact Cards
A set of 72 basic addition, subtraction, multiplication, and division fact cards.
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Active Learning Guide for Grades 2-3 - Week 1
Use this weekly active learning guide to celebrate National Physical Fitness Month in your Grade 2 or Grade 3 classroom.
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Number Talks - Fluency to 20 Task Cards
Build number sense skills with this set of 24 task cards.
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Friends of 20 – Addition Match-up Activity
A set of 40 matching cards to explore the number combinations of 20.
- 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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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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Missing Addend Picture Puzzle – Level 3
Solve the missing addition sentence by matching the addend with its equation, completing the puzzle.