Expanded Form of 4.1809

Place Value Chart
Ones Tenths Hundredths Thousandths Ten Thousandths
4.1809 4 . 1 8 0 9

Expanded Form of 4.1809:
4.1809 = (4 * 100) + (1 * 1/101) + (8 * 1/102) + (9 * 1/104)
4.1809 = (4 * 1) + (1 * 1/10) + (8 * 1/100) + (9 * 1/10,000)
4.1809 = 4 + 1/10 + 8/100 + 9/10,000

4.1809 = 4 + 0.1 + 0.08 + 0.0009

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