Expanded Form of 123.45

Place Value Chart
Hundreds Tens Ones Tenths Hundredths
123.45 1 2 3 . 4 5

Expanded Form of 123.45:
123.45 = (1 * 102) + (2 * 101) + (3 * 100) + (4 * 1/101) + (5 * 1/102)
123.45 = (1 * 100) + (2 * 10) + (3 * 1) + (4 * 1/10) + (5 * 1/100)
123.45 = 100 + 20 + 3 + 4/10 + 5/100

123.45 = 100 + 20 + 3 + 0.4 + 0.05

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