In a city, polio drops were given to 2, 12, 583 children on Sunday in March 2008 and to 2, 16, 813 children in the next month. Find the difference of the number of children getting polio drops in the two months.

Radius of the Earth is 6400km and that of Mars is 4300000m. Whose radius is bigger and by how much?

In 2001, the populations of Tripura and Meghalaya were 3, 199, 203 and 2, 318, 822, respectively. Write the populations of these two states in words.

A person had Rs 1000000 with him. He purchased a colour T.V. for Rs. 6580, a motor cycle for Rs 45890 and a flat for Rs 870000. How much money was left with him?

Out of 180000 tablets of Vitamin A, 18734 are distributed among the students in a district. Find the number of the remaining vitamin tablets?