4th Grade Maths Term 3 Unit 5 Money Conversion

UNIT−5
MONEY

Convert rupees to paise:

Our government of India indicates money as the symbol of ₹.

Sankar is preparing to go for an Excursion. He asks his father ₹ 400 as his pocket money. Father sees that ₹ 2000 notes only in the purse. Soon father goes to shop to get change for ₹ 2000.

Father: Sir, (I need change for ₹ 2000) give me change for ₹ 2000.

Merchant: I have following varieties of combination which are as follows:

Which one do you prefer?

Father: Ok sir. I select the third variety of combination. That is

Merchant: Ok sir. I will give you the same.

Father: Thank you sir.

Father: Sankar, here is your ₹ 400, get it.

Sankar: Thanks pa, I need change for ₹ 100.

Father: How it would be, whether ₹ 10 note or 20 note or 50 note?

Sankar: Father, shall I get the change as one ₹ 50 note, one ₹ 20 note, two ₹ 10 notes, one ₹ 5 note and 5 ₹ 1 coins.

Father: Ok.

Do you know? Our fore father had used various kinds of coins. Among them 1 paise, 2 paise, 5 paise, 10 paise, 20 paise, 25 paise, 50 paise. But they are not in use now.

Denomination

\[ \text{₹ } 2865 = \text{₹ } 2000 + \text{₹ } 500 + \text{₹ } 200 + \text{₹ } 100 + \text{₹ } 50 + \text{₹ } 10 + \text{₹ } 5 \]

₹ 2865

$$ \text{₹ } 2000 \times 1 = 2000 $$ $$ \text{₹ } 500 \times 1 = 500 $$ $$ \text{₹ } 200 \times 1 = 200 $$ $$ \text{₹ } 100 \times 1 = 100 $$ $$ \text{₹ } 50 \times 1 = 50 $$ $$ \text{₹ } 10 \times 1 = 10 $$ $$ \text{₹ } 5 \times 1 = 5 $$ $$ \text{Total ₹ } 2865 $$

Example Calculation:

$$ \text{₹ } 565 = \mathbf{100} + \mathbf{100} + \mathbf{100} + \mathbf{100} + \mathbf{100} + \mathbf{65} $$ $$ \text{₹ } 200 \times \mathbf{2} = \mathbf{400} $$ $$ \text{₹ } 100 \times \mathbf{1} = \mathbf{100} $$ $$ \text{₹ } 50 \times \mathbf{1} = \mathbf{50} $$ $$ \text{₹ } 10 \times \mathbf{1} = \mathbf{10} $$ $$ \text{₹ } 5 \times \mathbf{1} = \mathbf{5} $$ $$ \text{Total} = \mathbf{565} $$

Try This

Activity

Fill in the box with model notes.

Activity

Take a sheet of paper and cut out the model notes (₹ 10, ₹ 20, and ₹ 100). Affix it below the boxes provided to get the total of ₹ 200. One is done for you.

Have you ever gone to petrol bunk?

The price of 1 litre petrol is ₹ 78.12. Have you ever notice?

Although paise is not in circulation in the form of currency, but the cost of goods in paise are in use.

₹ 1 = 100 paise

Conversion of rupees into paise.

This conversion is useful while you are bargaining in the vegetable shop and so on.

To convert rupees into paise, multiply the rupees by 100.

EXAMPLE 1

Convert ₹ 2 into paise

$$ \text{₹ } 1 = 100 \text{ paise} $$ $$ \text{So, ₹ } 2 = 2 \times 100 = 200 \text{ paise} $$

EXAMPLE 2

Convert ₹ 8.50 into paise

$$ \text{₹ } 1 = 100 \text{ paise} $$

8 is in rupees and 50 is in paise.

So we multiply by ₹ 8 with 100 and add 50 paise.

$$ \therefore \text{₹ } 8.50 = 8 \times 100 + 50 $$ $$ = 800 \text{ paise} + 50 \text{ paise} $$ $$ = 850 \text{ paise} $$

EXAMPLE 3

Ravi's father went to the shop and bought 1 kg of dhal for ₹ 38.70. Convert the cost of dhal into paise.

Cost of 1 kg dhal = ₹ 38.70

$$ \text{₹ } 38.70 = 38 \times 100 \text{ paise} + 70 \text{ paise} $$ $$ = 3800 \text{ paise} + 70 \text{ paise} $$ $$ \text{Cost of dhal} = 3870 \text{ paise} $$

Conversion of paise into rupees.

To convert paise into rupees, divide the paise by 100.

EXAMPLE 1

Convert 900 paise into rupees

To change the paise into rupees, divide the paise by 100.

$$ 900 \text{ paise} = 900 \div 100 $$ $$ 900 \text{ paise} = \text{₹ } 9 $$

EXAMPLE 2

Convert 1950 paise into rupees

To change the paise into rupee, divide the paise by 100.

$$ 1950 \text{ paise} = 1950 \div 100 $$ $$ = 19.50 $$ $$ = \text{₹ } 19.50 $$