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Grade 1
Grade 2
Grade 3
Grade 4
Grade 5
Grade 6
Place the number discs along the sides of the triangle.
Make sure each sum equals the target number.
Make your own number puzzles!
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Magic Triangle - Learning Connections
Essential Skills
Mental Math - practice number bonds and missing addends

Common Core Connection for Grades 1+
Apply properties of operations as strategies to add and subtract.
Add and subtract within 20, demonstrating fluency for addition and subtraction within 10.
Add within 100, including adding a two-digit number and a one-digit number.
Fluently add and subtract within 20 using mental strategies.
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