Addition
ICSE · Class 2 · Mathematics
Summary of Addition for ICSE Class 2 Mathematics. Key concepts, important points, and chapter overview.
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Overview
Addition is one of the most important basic operations in mathematics. It means putting things together and finding the total. In this chapter, we learn how to add numbers step by step — starting from simple addition to adding large numbers with carry over. We also learn special rules about adding z
Key Concepts
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
Learning Objectives
- Understand what addition means and identify the '+' sign
- Learn how to find the sum of two or more numbers
- Apply the properties of addition (order change, adding zero, adding one)
- Perform addition of 2-digit and 3-digit numbers with and without carry over
- Solve word problems using addition
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