Question

Place commas correctly for each of the numbers according to the Indian Number System and write in expanded form.

(a) 74836
(b) 574021
(c) 8907010
(d) 99999999
(e) 100001
(f) 545

Answer 1

(a) 74,836 = 7 $\times$ 10000 + 4 $\times$ 1000 + 8 $\times$ 100 + 3 $\times$10 + 6 $\times$ 1

(b) 5,74,021 = 5 $\times$ 100000 + 7 $\times$ 10000 + 4 $\times$ 1000 + 2$\times$ 10 + 1$\times$1

(c) 89,07,010 = 8 $\times$ 1000000 + 9 $\times$ 100000 + 7 $\times$ 1000 + 1 $\times$ 10

(d) 9,99,99,999 = 9$\times$10000000 + 9$\times$1000000 + 9$\times$100000 + 9$\times$10000 + 9$\times$1000 + 9$\times$100 + 9$\times$10 + 9$\times$ 1

(e) 1,00,001 = 1 $\times$100000 + 1 $\times$ 1

(f) 545 = 5$\times$100 + 4$\times$10 + 5 $\times$ 1