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Choose the correct answer to the following question: 21 ÷ 3 = ?
8
7
6
5
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Choose the correct answer to the fill in the blank: 62 ___ 18
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>
=
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Which mathematical symbol represents the value 3.14159265359?
θ
Σ
∞
π
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List three of Fibonacci's acheivements and discoveries in the field of mathematics. Type your answer in the area below.