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Mathematics 19 Online
OpenStudy (anonymous):

We connect dots with toothpicks in a grid as shown below. If there are 10 horizontal toothpicks in each row and 20 vertical ones in each column, how many total toothpicks are there? (The picture below is to give you a rough idea of what the grid looks like. The picture below is not the actual size of the grid.)

OpenStudy (anonymous):

Picture

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