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Adding Two-Digit Numbers (Elementary)

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Directions: Make the smallest (or largest) sum by filling in the boxes using the whole numbers 1-9 no more than one time each

Hint

Hint

What does the number on the left represent?  What does the number on the right represent?

Answer

Answer

97 + 86 is one answer for the largest sum.  13 + 24 is the smallest sum.

Source: Robert Kaplinsky


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