Start Change End Addition & Subtraction to 100 with regrouping Task Cards

Tessa Maguire
Grade Levels
2nd - 3rd
Formats Included
  • PDF
72 (plus answer keys)
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Tessa Maguire


When building an understanding of addition and subtraction it's important to teach the different problem types. These Start Change End equation table task cards have students recognizing the operations and using their knowledge of the inverse operations to solve for the missing number. These 9 task card sets give students practice with both addition and subtraction with regrouping, perfect for second grade math centers! These task cards give students practice with the different problem types before applying to word problems later


3 sets of addition task cards (start unknown, change unknown, end unknown)

• 3 sets of subtraction task cards (start unknown, change unknown, end unknown)

• 3 sets of mixed operations task cards (start unknown, change unknown, end unknown)

• 2 recording sheet options (open template, start change end tables)

• covers for task card storage

• answer key

Each task card set includes 24 different cards. Each card features a start-change-end table with one part unknown, giving students practice with unknowns in all positions. One sheet includes the start-change-end table for students to write the pieces before solving. The other option is a blank table for students to use the space for the strategy that works best for them. This tool is perfect for second grade math centers all year long!

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Total Pages
72 (plus answer keys)
Answer Key
Teaching Duration
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to see state-specific standards (only available in the US).
Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.
Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.
Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.


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