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E:\Working\Focus_Learning\Math_Genius_4_(25-10-2023)\Open_Files\Chap-07
\\December 6, 2023 10:54 AM Bharat Arora P-6 Reader _________________________ Date: ___________________74
Understanding decimals
Maya has a chocolate. She wants to share it with her friends. So,
she divides the chocolate into 10 equal pieces, and gives 5 pieces
to Riya and 3 pieces to Siya.
3
5
Using fractions, we can say that Riya got 10 and Siya got 10 of the chocolate.
We can represent the fractions as: Remember
5 0.5 (read as zero point five) Decimal part of the number is
10 always less than one whole. We
3 0.3 (read as zero point three) write the zero at the left of
decimal point which indicates there
10 is no whole number in the left.
These are called the decimal numbers or simply decimals.
Here, we can see that a dot or point is used in the decimal representation of the
above fraction. The point is called ‘decimal point’.
Let us consider the number 3.5 as shown alongside. 3 . 5
Whole
A decimal number has three parts: whole number number Decimal
part
part, decimal point and fractional or decimal part. part Decimal point
Number written before decimal point is called whole number part and the number
after decimal point is called fractional part.
tenths
Take a paper strip and divide it into 10 equal parts. 1 or 0.1 (one-tenth)
1 10
Each part is (one-tenth) of the strip. Shade its one
part. 10 1 1 1 1 1 1 1 1 1 1
10 10 10 10 10 10 10 10 10 10
The fraction of shaded part = 1
10
We can write it in decimal form as 0.1 and read a ‘zero point one’.
Look at the shaded parts of these strips.
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
2 = 0.2 (two-tenths 6 = 0.6 (six-tenths or 8 = 0.8 (eight-tenths or
10 10 10
or zero point two) zero point six) zero point eight)
128 Mathematics-4

