take the example 45.67. this is how it is expanded:
40.00 + 5.00 + .60 + .07 = 45.67.
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The expanded form of a decimal number is the number written as the sum of its whole number and decimal place values. Example: 3 + 0.7 + 0.06 + 0.002 is the expanded form of the number 3.762. 100 + 3 + 0.06 is the expanded form of the number 103.06.
0.84 = (0 x 1) + (8/10) + (4/100)
32.346 = (3 x 10) + (2 x 1) + (3/10) + (4/100) + (6/1000)
2.16 written in expanded form = 2 + 0.1 + 0.06
In standard form it is 1.1*10^-2.In expanded form it is 0.01 + 0.001