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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.
5 3
Using fractions, we can say that Riya got 10 and Siya got 10 of the chocolate.
We can represent the fractions as:
Math Insight
5
0.5 (read as zero point five) The decimal part of the number
10 is always less than one whole. We

3 write the zero to the left of the
0.3 (read as zero point three) decimal point which indicates there
10 is no whole number on the left.

These are called 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 3 . 5
is called a ‘decimal point’. Whole Decimal
number
Let us consider the number 3.5 as shown alongside. part Decimal point part

A decimal number has three parts: a whole number part, a
decimal point and a fractional or decimal part. Knowledge Desk

The number written before the decimal point is called the The word “decimal”
whole part and the number after the decimal point is called comes from the Latin
word ‘decem’ meaning
the fractional part. ten!

tenths

Take a paper strip and divide it into 10 equal parts. Each 1
1 10 or 0.1 (one-tenth)
part is (one-tenth) of the strip. Shade one part.
10

Fraction of the shaded part = 1 1 1 1 1 1 1 1 1 1 1
10 10 10 10 10 10 10 10 10 10 10
We can write it in decimal form as 0.1 and read it as 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)

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