Question

Exercise 1.1
1. Give the word form and the expanded notation for these numbers
(a) 8,39,023
(b) 20,00,905
(c) 35, 857
(d) 83,00,900
(e) 4,37,19,000
(1) 5,72,16,800​

Answer 1

a.eight lakh thirty nine thousand twenty three
b.twenty lakh nine hundred and five
c.thirty five thousand eight hundred fifty seven
d.eighty three lakh nine hundred
e.four crore thirty seven lakh nineteen thousand
f. Five crore seventy two lakh sixteen thousand eight hundred
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Answer 2

Answer:

1) a) 839,023 =  800,000 + 30,000 + 9,000 + 0 + 20 + 3

b) 20,00,905  = 2,000,000  + 0 + 0 + 0  + 900 + 0 + 5  

c )35, 857 = 2,000,000  + 0 + 0 + 0 + 900 + 0 + 5

d) 83,00,900 = 8,000,000 + 300,000  + 0 + 0 + 900 + 0 + 0

e )4,37,19,000 =  40,000,000 + 3,000,000 + 700,000 + 10,000 + 9000 + 0 + 0 + 0

f) 5,72,16,800​ = 50,000,000 + 7,000,000 + 200,000 + 10,000 + 6,000 + 800 + 0 + 0