Whole Numbers and Decimals
In whole number and decimals we will learn how to represent
a mixed number graphically and write in decimal form.
1. Let us consider a mixed number 1\(\frac{7}{10}\). The number
can be represented graphically as given below.
Here, whole number part is 1 and the decimal part is 7.
The number is written as 1.7 and it is read as one point three. In the place-value chart 1 is written under ones column and 7 is written in the tenths column.
2. Let us consider an another mixed number 1\(\frac{3}{10}\). The number can be represented graphically as given below.
Here, whole number part is 1 and the decimal part is 3. The
number is written as 1.3 and it is read as one point three. In the place-value
chart 1 is written under ones column and 3 is written in the tenths column.
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A fractional number whose denominator is 10 or multiple of 10 is called a decimal. Every decimal has two parts whole number part and decimal part. These two parts are separated by a dot or point. This dot or point is known as decimal point.
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In order to convert other fractions into decimals, we follow the following steps: Step I: Convert the fraction into an equivalent fraction with denominator 10 or 100 or 1000 if it is not so. Step II:Take the given fraction’s numerator. Then mark the decimal point after
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When we write a decimal number with three places, we are representing the thousandths place. Each part in the given figure represents one-thousandth of the whole. It is written as 1/1000. In the decimal form it is written as 0.001. It is read as zero point zero zero one
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When we write a decimal number with two places, we are representing the hundredths place. Let us take plane sheet which represents one whole. Now, we divide the sheet into 100 equal parts. Each part represents one-hundredths of the whole. It is written as \(\frac{1}{100}\).
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The first place after the decimal point is tenth place which represents how many tenths are there in a number. Let us take a plane sheet which represents one whole. Now, divide the sheet into ten equal parts. Each part represents one tenth of the whole. It is written as
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