Page 163 - Maths Skill - 3

Money 161

Exercise 12.4

1. Subtract the following amounts.

(a) ` p (b) ` p (c) ` p
98 50 198 50 200 00

– 20 85 – 189 25 – 86 86

(d) ` p (e) ` p (f) ` p

450 50 187 50 970 50
– 279 15 – 39 75 – 700 05

2. Subtract the following amounts.

(a) ` 1 5 4 . 3 5 (b) ` 2 0 0 . 0 0 (c) ` 2 4 6 . 3 5

– ` 8 2 . 9 0 – ` 5 2 . 6 5 – ` 1 0 0 . 9 0

3. Find the difference between the following amounts.

(a) ` 39.08 and ` 16.35 (b) ` 680.35 and ` 339.25
(c) ` 439.80 and ` 296.85 (d) ` 768.35 and ` 123.90

Multiplication of Money

To multiply an amount by a given number, we follow these steps:

Step 1: Multiply the given amount by the given number as we do in case of ordinary
numbers.
Step 2: Write the product and put the point (.) after the second digit from the right.

Let’s Attempt

Example 1: Multiply ` 15.50 by 7. Example 2: Multiply ` 112.75 by 4.
Solution: Solution:
3 3 1 3 2

` 1 5 . 5 0 ` 1 1 2 . 7 5
× 7 × 4
` 1 0 8 . 5 0 ` 4 5 1 . 0 0

Thus, ` 112.75 × 4
Thus, ` 15.50 × 7 = ` 108.50
= ` 451.00 = ` 451