0
2,800,000,000
expanded form - (2 x 1000000000) + (8 x 100000000) + (0 x 10000000) + (0 x 1000000) + (0 x 100000) + (0 x 10000) + (0 x 1000) + (0 x 100) + (0 x 10) + (0 x 1)
standard form - 2,800,000,000
BUT instead of adding two numbers you could just move the decimal 9 places over.
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