In this chapter, the students will learn about class 2 addition. They will learn about the term’s addends, addition sign, and sum.
In this learning concept, the students will learn:
Each concept is explained to class 2 maths students using illustrations, examples, misconceptions, and mind maps. You can assess your learning by solving the two printable worksheets at the pages' end.
Download the addition worksheet for class 2 and check the solutions for the concept of addition provided in PDF format.
Addition- To find a total or count the objects together we use addition.
We have learned the addition of one-digit numbers. Now we will learn the addition of the two-digits numbers.
Example:There are 12 matchsticks and we need to add 22 matchsticks to it.
Count the total number of matchsticks.
A bundle of ten matchsticks represents the 1 ten and two individual matchsticks represent 2 ones. It makes number 12.
Similarly, two bundles of ten matchsticks represent the 2 tens and two individual matchsticks represent 2 ones. It makes number 22.
Now, we want to count all these matchsticks together.
Put all the bundles together and individual matchsticks together.
Three bundles of ten matchsticks represent 3 tens and four individual matchsticks represent 4 ones. It makes number 34.
So, the sum of the numbers 12 and 22 is 34:
12 + 22 = 34
Note:
Step 1: Write the numbers horizontally connected with plus sign.
Step 2: Add the ones place numbers.
Step 3: Add the tens place numbers.
Step 1: Write the numbers horizontally.
Step 2: Add the ones place numbers.
Here, the first addend at ones place is the number 4, and the second addend at ones place is 5. Add the 4 and 5.
Step 3: Add the tens place numbers.
Here, the first addend at tens place is 2, and the second addend at tens place is 7. Add 2 and 7.
So, we get
(To do vertical addition we use place value tables.)
Step 1: Write the numbers in place value tables correctly.
Step 2: Add the ones place numbers.
Step 3: Addition the tens place numbers.
Step 1: Write the numbers in place value tables correctly. On the write the representation for the numbers is shown.
Step 2: Add the numbers at ones place.
Step 3: Add the numbers at tens place.
So, we get:
Step 1: Write the numbers in place value tables correctly.
Step 2: Add the numbers at ones place.
When we add 5 and 7, we get 12. But we can’t write the two-digit number at the ones place.
Step 3: Carry over the tens place number of the sum to the next place that is tens place.
Out of 12 ones, we can make a group of 10 flowers which is 1 ten. So, 2 flowers are remaining which indicates 2 ones.
Step 4: Add the numbers at tens place. (Including the carry over number also)
So, we get