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Explain how you know what number is missing in the equation 3,947 = 3,000 + Blank + 40 + 7
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Explain how you know what number is missing in the equation 3,947 = 3,000 + Blank + 40 + 7

User Kerry Johnson
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It's in expanded form, so you add each part (thousands, hundreds, tens, and ones) separately. the hundreds is missing. looking at the number, it is 900.
User KNOWARTH
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