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
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 - Three-Digit Addition Task Cards
Build number sense skills with this set of 24 task cards.
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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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Number Talks - Balancing Equations Task Cards
Build number sense skills with this set of 40 task cards.
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Target Number Math Warm-up Activity
A great math warm-up activity where students brainstorm number sentences that equal a 'target number'.
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Grade 2 Daily Warm-Up – PowerPoint 3
A 71-slide PowerPoint presentation containing a variety of quick warm-up activities.
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Grade 2 Daily Warm-Up – PowerPoint 2
A 73-slide PowerPoint presentation containing a variety of quick warm-up activities.
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Friends of 20 – Addition Match-up Activity
A set of 40 matching cards to explore the number combinations of 20.
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Math Mazes - Addition and Subtraction
A set of puzzling mazes that require addition and subtraction skills to solve.
- Free Plan
Math Mazes - Two-digit Addition
Practice adding two-digit numbers with this set of differentiated math mazes.
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MLK Day Hidden Message - Lower Grades
Practice addition and subtraction facts within 20 to uncover a meaningful quote.
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Word Problem Task Cards - 2-digit + 1-digit Addition
Practice adding 2-digit and 1-digit numbers with this set of 16 word problem task 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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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.
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Missing Addend Picture Puzzle – Level 2
Solve the missing addition sentence by matching the addend with its equation, completing the puzzle.
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Missing Addend Picture Puzzle – Level 1
Solve the missing addition sentence by matching the addend with its equation, completing the puzzle.
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2-Digit Plus 1-Digit Addition – Star Matchup Cards
A set of matchup cards to practice adding a 2-digit number with a 1-digit number.
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Friends of... 1 to 10 - Black and White Version
A set of 10 posters showing the different combinations to make the numbers 1 to 10.
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2-Digit Plus 1-Digit Addition – Star Matchup Cards
A set of matchup cards to practice adding a 2-digit number with a 1-digit number.
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2-Digit Subtraction by Regrouping - Poster
Break down the steps to use regrouping to find a solution to a 2-digit subtraction problem with a printable subtraction anchor chart.
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Addition Up to 20 - Star Matchup Cards
A set of matchup cards to practice adding within 20.
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Addition Up To 20 - Star Matchup Cards
A set of matchup cards to practice adding within 20.
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Addition Up To 20 - Owl Matchup Cards
A set of matchup cards to practice adding within 20.
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Addition Up To 20 - Monster Matchup Cards
A set of matchup cards to practice adding within 20.
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Fact Family Find and Flip - Double-Digit Addition and Subtraction
Practice working with addition and subtraction fact families using double-digits with this math game.
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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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Open-ended Math Problem Solving - Grades 1, 2, and 3 (Task Card Version)
A set of 20 open-ended problem solving task cards covering a range of mathematical concepts.
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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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Strategies for Subtraction - Anchor Charts
Remind your students of the many subtraction strategies with a printable subtraction anchor chart display.
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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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Number of the Day Warm-Up PowerPoint
A 30-slide editable PowerPoint Template for a 'number of the day' warm up.