Guestimate that side

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Guestimate that side

Take your best guess at figuring out the RED side in question

Without using a calculator!

Number a piece of paper 1 to 5

Record your answers on a piece of paper

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4.

500

200 N

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Add up all your numbers ignoring negatives

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42.3 + 72.4 + 128.6+153.2 + 28.7= 425.2

Who is the closest?