Class 2 Maths - ICSE
Addition
In this chapter, Class 2 ICSE students learn how to put numbers together to find a total, building upon single-digit addition from Class 1. This chapter covers adding 2-digit numbers both without and with regrouping, also known as carrying over. Students will also learn word problems that connect addition to everyday life situations like counting objects or money. Mastering this chapter is very important because it forms the solid foundation for all future arithmetic, multiplication, and multi-digit calculations in higher ICSE board examinations.
Start Learning FreeKey Concepts
Addition without Regrouping
Adding two numbers where the sum of the digits in any column does not exceed 9, so no carrying over is needed.
Addition with Regrouping (Carrying Over)
When the sum of digits in the ones column is 10 or more, we write the ones digit below and carry over the tens digit to the tens column.
Order Property of Addition
Changing the order of the numbers we are adding does not change the final sum, for example, 3 + 4 is the same as 4 + 3.
Adding Zero
When you add zero to any number, the number stays exactly the same.
Word Problems in Addition
Solving simple story sums by reading carefully and identifying keywords like 'altogether', 'total', and 'sum'.
Important Formulas
Board Exam Info
In ICSE Class 2 Mathematics assessments, the chapter on Addition typically carries around 10 to 15 marks. Common question types include column addition sums, carrying over sums, fill in the blanks using properties of addition, and 2-step word problems.
Frequently Asked Questions
Why do we start adding from the ones column?
We always start from the ones column so that if our sum is 10 or more, we can easily carry over the extra tens to the tens column.
What does 'altogether' mean in a word problem?
'Altogether' is a clue word that tells you to add all the given numbers together to find the total amount.
What happens if I forget to add the carried-over number?
Your final answer in the tens column will be wrong. Always remember to add the carried-over digit to your tens column sum!
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