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a) Face value of a digit in a number, is the digit itself.
b) Place value of a digit in a number = face value * value of the place it occupies
in the place value chart.
c) The method of representing a number in digits or figures is called notation.
The method of expressing a number in words is called numeration and it is of
two types: Indian System of Numeration and International System of
Numeration.
d) Estimate involves approximating a quantity to an accuracy. We can estimate a
number by rounding off to the nearest tens, hundreds and thousands.
e) The Roman numerals use the symbols I, V, X, L, C, D and M for writing their
numbers.
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iduegsisug.
i need some coin so sorry
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