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Complete the number puzzle using whole numbers.
The number in each block is the sum of the two numbers directly below it.
More Math Games to Play
Number Conundrum Whole Numbers - 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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