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Worksheet
Edline

Adding and Subtracting Integers

For Students 1st - 3rd
When should you use a number line to add and subtract integers, and when should you use absolute values? Complete a set of worksheets designed to reinforce adding and subtracting integers with both standard problems and word problems....
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Worksheet
Curated OER

Adding Integers 1-Counters

For Students 3rd - 5th
In this integer worksheet, students solve use pictures of red and blue counters to solve problems and write addition sentences. Example problems are completed for students.
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App
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Pala Software

MathBoard

For Students 3rd - 10th Standards
Do you want to practice arithmetic skills from simple addition facts, to cubes and square roots, to solving one-step equations? Here is a great app for practicing and learning everything from arithmetic practice using integers to solving...
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Lesson Plan
Curated OER

Clock Arithmetic and Cryptography

For Teachers 2nd - 5th
Students perform basic operations in modular (clock) arithmetic. Students encode and decode messages using shift and affine ciphers. Students apply their multiplication, division, addition, and subtraction skills.