0 added to a number gives the same number.

The sum of 2789 and 1000 is 3889.

The sum of 7 thousands, 8 hundreds, 8 tens and 9 ones is 7899.

The sum of 2100 and 110 is 2210.

Two or more numbers can be added in any order.

There are 1000 apple trees, 1100 mango trees and 900 orange trees in an orchard. How many trees are there in the orchard in all?

In a factory, 900 juice cans were packed in the morning, 1000 cans in the afternoon and 950 cans in the evening. How many juice cans were packed in all?

There are 6200 men, 6000 women and 3000 children in a city. How many people are there in the city?

A library has 900 English books, 800 Hindi books and 1100 Mathematics books. How many books are there in the library?

There are 1100 boys and 1250 girls in a school. How many students are there in the school?

There are 2200 people in village A and 1900 people in village B. How many people are there in both the villages?

What is the value of 1300 + 2200?