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Once we learn to add single digit numbers, the next step is to learn to add two digit numbers. Addition is used in everyday life many times a day. Whenever we are counting money or anything else we use addition. We can add as many numbers as we want.
See the fact file below for more information on the two digit addition or alternatively, you can download our 28-page Two Digit Addition worksheet pack to utilise within the classroom or home environment. This worksheet is broken down by Beginner, intermediate and advanced meaning you can choose the complexity level for your student.
Key Facts & Information
- Addition of numbers means to find the total value or sum of those numbers combined.
Example: 2 + 1 = 3
- Addition of two digit numbers: 21+ 31 = 52
- When we add zero to a number, the number remains unchanged.
Example: 20 + 0 = 20
- Addition is one of the most basic operations that will help us understand all other operations.
What is addition?
- After developing number sense, children are introduced to addition. Addition is one of the four basic operations taught in mathematics.
- The four basic operations are addition, subtraction, multiplication and division. Adding two numbers results in their total value.
- This means by addition of two numbers we find their sum. Addition is used in everyday life many times a day.
- Whenever we are counting money or anything else we use addition. We can add as many numbers as we want.
- Addition has a special symbol “+”.
- Here are examples of simple one digit addition:
1 + 4 = 5
7 + 2 = 9
5 + 3 = 8
- When we add zero to a number, nothing happens to the number. Its value remains unchanged as shown below:
6 + 0 = 6
0 + 3 = 3
Two digit addition
- Single digit addition is very easy and is similar to counting.
- Once we learn to add single digit numbers, the next step is to learn to add two digit numbers.
- We just have to follow a simple procedure.
- We can have two cases. The addition will either generate a carry or it will not generate a carry.
- We will first explain the scenario where there is no carry. This is relatively simpler and is similar to single digit addition.
Case I (No carry)
- Suppose we add the following two numbers:
24 + 34
- We start by arranging these two numbers vertically as shown below:
- We do this so that the ones place and the tens place of both the numbers are aligned.
- In our example for 24, 4 is at ones place and 2 is at tens place. Similarly for 34, 4 is at ones place and 3 is at tens place.
- By arranging the numbers in vertical form we have ones above ones and tens above tens.
- After arranging we draw a line below these numbers and put the addition sign on the left side as shown: 运动裤下的秘密在线阅读 运动裤下的秘密在线阅读 ,乡村大凶器400章完结 乡村大凶器400章完结
- Next we start adding the numbers. We start from the right and add the two numbers at ones place.
4 + 4 = 8
- We write the answer under the line at ones place.
- Next we add the two numbers at tens place.
2 + 3 = 5
- We write the answer under the line at tens place as shown below:
So, 24 + 34 = 58
Case II (with carry)
- Suppose we want to add the following numbers:
47 + 35
- We will again arrange them vertically as we did in the previous example:
- We start by adding the digits at ones place.
7 + 5 = 12
- By adding we get a two digit number 12.
- This two digit number has 2 at ones place and 1 at tens place.
- We write 2 under the line at ones place and use 1 as carry and place it on top of 4 as shown below:
- Now we add the two digits at tens place along with the carry digit.
4 + 3 + 1 = 8
- We write the answer at tens place under the line.
So, 47 + 35 = 82
Importance of addition
- Addition helps develop mental skills and number sense in children.
- It is used in everyday life because we add numbers, items, money etc on daily basis.
- It acts as a foundation for learning new concepts.
- Add the following numbers:
14 + 22
- We first add both the digits at ones place:
4 + 2 = 6
- Then we add the digits at tens place:
1 + 2 = 3
运动裤下的秘密在线阅读 运动裤下的秘密在线阅读 ,乡村大凶器400章完结 乡村大凶器400章完结 So, 14 + 22 = 36
- Add the following numbers:
34 + 19
- We add the two digits at ones place:
4 + 9 = 13
- We write 3 at ones place under the blue line and use 1 as carry digit.
- Now we add the two digits and the carry at tens place:
3 + 1 + 1 = 5
- We write 5 at tens place under the blue line.
So, 34 + 19 = 53
- Suppose Nick bought 10 pink balloons and 16 purple balloons for Sarah’s birthday. How many total number of balloons did he buy?
pink balloons = 10
purple balloons = 16
total balloons = pink balloons + purple balloons
total balloons = 10 + 16
- Adding the digits at ones place we get:
0 + 6 = 6
- Adding the digits at ten place we get:
1 + 1 = 2
So, total balloons = 26
Two Digit Addition Worksheets
This is a fantastic bundle which includes everything you need to know about two digit addition across 28 in-depth pages. These are ready-to-use Two Digit Addition worksheets that are perfect for teaching students about the two digit addition. Once we learn to add single digit numbers, the next step is to learn to add two digit numbers. Addition is used in everyday life many times a day. Whenever we are counting money or anything else we use addition. We can add as many numbers as we want.
Complete List Of Included Worksheets
- Worksheet 1 (Beginner)
- Worksheet 2 (Beginner)
- Worksheet 3 (Beginner)
- Worksheet 4 (Beginner
- Worksheet 5 (Intermediate)
- Worksheet 6 (Intermediate)
- Worksheet 7 (Intermediate)
- Worksheet 8 (Intermediate)
- Worksheet 9 (Advance)
- Worksheet 10 (Advance)
- Worksheet 11 (Advance)
- Worksheet 12 (Advance)
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Use With Any Curriculum
These worksheets have been specifically designed for use with any international curriculum. You can use these worksheets as-is, or edit them using Google Slides to make them more specific to your own student ability levels and curriculum standards.