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Exploring numbers
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Games and projects introduce the number system, starting with place value and ending with the four operations--addition, subtraction, multiplication, and division.
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Games and projects introduce the number system, starting with place value and ending with the four operations--addition, subtraction, multiplication, and division.
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"Games and projects introduce the number system, starting with place value and ending with the four operations--addition, subtraction, multiplication, and division."
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