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Subtraction Algorithm

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Common Core Math Resources, Lesson Plans & Worksheets for all grades
Common Core Math Lessons, Math Worksheets and Games for Grade 2
Common Core Math Lessons, Math Worksheets and Games for all grades



Examples, videos, and solutions to help Grade 2 students learn how to relate manipulative representations to the subtraction algorithm, and use addition to explain why the subtraction method works.

Common Core Standards: 2.NBT.7, 2.NBT.9

New York State Common Core Math Grade 2, Module 5, Lesson 13

Topic C: Strategies for Decomposing Tens and Hundreds Within 1,000

NYS Math Module 5 Grade 2 Lesson 13

Worksheets for Grade 2

Lesson 13 Homework

2. Solve using either mental math or the vertical method with number disks. Check your work using addition.
b. 153 – 38 = _______
d. 485 – 177 = _______

3. Complete the number sentence modeled by disks.



Check out our most popular games!

Fraction Concoction Game:
Master fractions in the lab: mix, add, and subtract beakers to create the perfect concoction!

Fraction Concoction Game

Fact Family Game:
Complete fact families and master the link between addition & subtraction and multiplication & division.

Fact Family Game

Number Bond Garden:
Clear the board by matching number pairs that sum to ten in this garden-themed mental math puzzle.

Number Bond Garden

Online Addition Subtraction Game:
Practice your addition and subtraction skills to help the penguin find its mummy.

Online Addition Subtraction Game


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