Addition — Chapter Summary

Addition means combining two or more

Addition means combining two or more numbers to get a total. The symbol for addition is '+'. The answer we get is called the sum. For example, 5 + 3 =

There are three important rules

There are three important rules: (1) Changing the order of numbers does not change the sum. (2) Adding zero to any number gives the same number. (3) A

When the sum of digits

When the sum of digits in any column (ones or tens) is less than 10, we simply add and write the answer below. For example, 24 + 35 = 59.

When the sum of digits

When the sum of digits in a column is 10 or more, we carry the extra ten to the next higher place. For example, in 27 + 35, 7 + 5 = 12, so we write 2

Real

Real-life situations where we need to find a total, like counting books, people, or money spent. We read the problem, identify the numbers, and add th