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Practice Time 2D

1. Write the following decimal numbers in the expanded form.

(a) 25.78 (b) 78.063 (c) 300.05 (d) 4151.782
2. Write the place value of 6 in the following decimal numbers.
(a) 60.27 (b) 162.58 (c) 13.562 (d) 359.136
3. Convert each of the following into like decimals.

(a) 14.25, 0.002, 8.363, 0.7 (b) 12, 1.03, 15.69, 23.897
(c) 7.4, 4.79, 5.63, 0.67
4. Express the following in decimals.

(a) 7 cm in m (b) 2526 mm in m
(c) 15 kg 15 g in kg (d) 7595 paise in rupees
(e) 7860 mL in L
5. Add the following decimals.

(a) 23.25, 21.321, 26.584, 0.02 (b) 113.87, 2.005, 177.4, 61.090
(c) 23.354, 85.26, 10.10, 9.45 (d) 85.102, 93.17, 145.26, 225
6. Subtract the following decimals.

(a) 13.63 from 98.51 (b) 0.2896 from 5.09
(c) 9.399 from 27 (d) 25.69 from 3.96
(e) 200.85 from 300
7. Simplify the following decimals:

(a) 45.63 – 58.6 + 13.06
(b) 72.89 + 7.68 – 48.009 – 13.87
(c) 83.20 – 45.67 + 9.96 – 25.93

(d) 25.02 – 3.61 – 7.11 – 0.056
8. What is to be added to 23.16 to get 56.23?
9. What is to be subtracted from 9.6 to get 0.562?

10. By how much should 56.34 be increased to get 85.109?
11. By how much should 112.79 be decreased to get 36.97?
12. The difference of two numbers is 18.11. If one number is 5.22, find the other.
13. A 2 L beaker is partially filled with 475 mL of oil. How much part of the beaker is empty?

Think and Answer
Swastik was preparing for his birthday party. He purchased cake for `850.50, balloons for `75.75,
snacks for `500 and return gifts for `675.25.
His father gave `4000 to him to spend on the birthday party. How much money is left with him?
If you were Swastik, what would you do with the money left after spending on the preparations of the party?
COMPETENCY BASED QUESTION

Mathematics-7 44