Expanded Form of 123.7

Place Value Chart
Hundreds Tens Ones Tenths
123.7 1 2 3 . 7

Expanded Form of 123.7:
123.7 = (1 * 102) + (2 * 101) + (3 * 100) + (7 * 1/101)
123.7 = (1 * 100) + (2 * 10) + (3 * 1) + (7 * 1/10)
123.7 = 100 + 20 + 3 + 7/10

123.7 = 100 + 20 + 3 + 0.7

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