2.51 = 2 + 0.5 + 0.01 2.52 : tw o an d f i f t y o n e h u n d re d t h s
The number 2.51 can be written in expanded form as 2 + 0.5 + 0.01. In word form, it is expressed as "two and fifty-one hundredths." This notation clearly shows both the whole number and decimal parts of the number.
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