Page 204 - New Medley 5 Semester 1

Example 7: Simplify: 28.32 + 491.1 – 386.927

Solution: Step 1. Step 2.

2 8 . 3 2 5 1 9 . 4 2 0

+ 4 9 1 . 1 0 – 3 8 6 . 9 2 7

5 1 9 . 4 2 1 3 2 . 4 9 3

Thus, 28.32 + 491.1 – 386.927 = 132.493

Example 8: A vessel contained 2.250 L of milk. My mother poured
2.500 L more milk in it. How much milk is now in the

vessel?

Solution: Milk kept in the vessel = 2 . 2 5 0 L

Milk poured by mother = + 2 . 5 0 0 L

∴ Quantity of milk in the vessel = 4 . 7 5 0 L

Example 9: Rita had `200. She bought sugar for `45.50, rice for

`29.25 and wheat flour for `95. How much money was
left with her?
Solution: Money spent on sugar = ` 4 5 . 5 0

`
Money spent on rice = 2 9 . 2 5

Money spent on wheat flour = + ` 9 5 . 0 0

`
Total expense = 1 6 9 . 7 5

Rita had the sum of money = ` 2 0 0 . 0 0

She spent for buying things = – ` 1 6 9 . 7 5

∴ Money left with Rita ` 3 0 . 2 5

EXERCISE 5.3

A. Write the decimals in columns and find the sum.

1. 22.32 + 38.75 2. 3.123 + 41.597 3. 0.455 + 0.52

4. 5.5 + 95.12 + 0.823 5. 3.11 + 0.666 + 53 6. 0.753 + 0.9 + 3

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