Grade 5 : Math : Exercise 1A

1. Give the place value of the black digit.

a) 89,00,345

9 is in lakhs position.

hence the place value is 9*1,00,000 = 9,00,000.

b) 30,34,112

3 is in ten lakhs position.

hence the place value of 3 is 3*10,00,000 = 30,00,000.

c) 87,93,389

3 is in thousands position

hence the place value of 3 is 3*1000 =3000

d) 2,67,23,592

2 is in crores position

hence the place value of 2 is 2*1,00,00,000 =2,00,00,000

e) 7,08,19,004

1 is in ten thousands position
hence the place value of 1 is 1*10,000 = 10,000.

2. Give the word form and the expanded notation for these numbers.

 a) 67,09,654

60,00,000 + 7,00,000 + 0 + 9,000 + 600 + 50 + 4

b) 9,83,10,809

9,00,00,000 + 80,00,000 + 3,00,000 + 10,000 + 0 + 800 + 0 + 9

c) 2,10,23,008

2,00,00,000 + 10,00,000 + 0 + 20,000 + 3,000 + 0 + 0 + 8

d) 45,00,091

40,00,000 + 5,00,000 + 0 + 0 + 0 + 90 + 1

3. Give the standard numeral for :

a) 4,00,00,000 + 60,00,000 + 5,00,000 + 40,000 + 200

4,65,40,200

b) 90,00,000 + 60,00,000 + 3,000 + 6

9,60,03,006

c) 6,00,00,000 + 5,00,000 + 20

6,05,00,020

d) 30,00,000 + 9,00,000 + 7,000 + 80

39,07,080