S. K. Gupta Anubhuti Gangal Class 5 Math Third Chapter Operations On Large Numbers Exercise 9
EXERCISE 9
(1) Write the product:
(a) 845 × 10 = 8450
(b) 9572 × 100 = 957200
(c) 605 × 1000 = 605000
(d) 987 × 10, 000 = 9870000
(e) 549 × 1, 00, 000 = 54900000
(f) 237 × 10, 00, 000 = 237000000
(g) 695 × 30 = 20850
(h) 732 × 900 = 658800
Multiply:
(2) 99706 × 73 = 7278538
(3) 69725 × 846 = 58987350
(4) 596832 × 790 = 471497280
(5) 7851 × 6925 = 54368175
(6) 391525 × 861 = 337103025
(7) 65839 × 6007 = 395494873
(8) 47030 × 5600 = 263368000
(9) 70095 × 950 = 66590250
(10) A residential school has 580 students on its rolls. If the annual fee per student is Rs 1,36,000 what is the total collected annually by the school?
Solution: The total collected annually by the school = 136000 × 580 = Rs 78880000.
(11) A builder constructs 430 flats in society. If each flat costs Rs 39,90,560 what is the total cost of all the flats?
Solution: The total cost = 3990560 × 430 = Rs 1715940800.
(12) 25,978 copies of the latest Harry Potter book were sold. If each book costs Rs 975, how much is earned by the sale of these books?
Solution: The required earned = 25978 × 975 = Rs 25328550.
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