Addition and subtraction worksheets are used to teach children to count or to test their skills in addition and subtraction. Different tables are used for these two tasks. Both versions of the tables can be downloaded and printed on this page
Addition table up to 20 print and download
The addition table is used to teach children. The vertical leftmost column and the horizontal top row represent terms. In order to add two numbers, you need to find them in a vertical column and in a horizontal row. The intersection forms the sum of these two terms. For example, as shown in the figure below, 6 + 5 = 11.
You can print the addition to 20 worksheet in Word or PDF format. If you need an addition table up to 10, you can easily make one by removing unnecessary cells in Word format. If you need an addition table for more than 20, then you can download the addition table in Excel format and add the necessary columns and rows by copying.
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Subtraction table up to 20 print and download
The subtraction table uses the same addition table that can be printed above. Suppose we need to solve the example 14 - 8 = 6. Using the subtraction table, we find in the table field the diagonal with the minuend 14. In the figure below, this diagonal is highlighted in light green. We select the number 14 on this diagonal, which is opposite the subtracted 8. The resulting number 6 in the top row is the answer.
As you can see, the same addition and subtraction table is used for addition and subtraction, which you can print or download from the links above in different formats.
Subtraction table without answers print and download
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Based on the layout of the subtraction table with answers in Excel format, if necessary, you can make other subtraction tables, for example, large values, up to 20, up to 30, etc.
Addition and subtraction worksheets are used to teach children to count or to test their skills in addition and subtraction. Different tables are used for these two tasks. Both versions of the tables can be downloaded and printed on this page
Addition table up to 20 print and download
The addition table is used to teach children. The vertical leftmost column and the horizontal top row represent terms. In order to add two numbers, you need to find them in a vertical column and in a horizontal row. The intersection forms the sum of these two terms. For example, as shown in the figure below, 6 + 5 = 11.
You can print the addition to 20 worksheet in Word or PDF format. If you need an addition table up to 10, you can easily make one by removing unnecessary cells in Word format. If you need an addition table for more than 20, then you can download the addition table in Excel format and add the necessary columns and rows by copying.
 |
|
 |
|
 |
Subtraction table up to 20 print and download
The subtraction table uses the same addition table that can be printed above. Suppose we need to solve the example 14 - 8 = 6. Using the subtraction table, we find in the table field the diagonal with the minuend 14. In the figure below, this diagonal is highlighted in light green. We select the number 14 on this diagonal, which is opposite the subtracted 8. The resulting number 6 in the top row is the answer.
As you can see, the same addition and subtraction table is used for addition and subtraction, which you can print or download from the links above in different formats.
Subtraction table without answers print and download
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In this lesson you will learn how to add and subtract single-digit numbers using place value. Deciding interesting tasks, you will study the algorithm for adding and subtracting numbers by passing through ten and get acquainted with the table for adding single-digit numbers up to 20. You will have the opportunity to practice the previously studied material using interesting examples.
Subject:Introduction to basic concepts in mathematics
Lesson: Adding and subtracting single-digit numbers using place value. Addition table up to 20
Using a graphical model, you can explain addition of single-digit numbers passing through tens.
How can you add 9 and 7?(Fig. 1)
Rice. 1
The graphical model shows that the first term 9 must be added to 10. To do this, we divide the second term into two parts, one of which is equal to the number 1, since
9 + 1 = 10, which means 7 = 1 + 6. (Fig. 2)
Rice. 2
Let's do the addition by parts:
9 + 7 = (9 + 1) + 6 = 10 + 6 = 16
Answer: 9 + 7 = 16.
You can add these numbers differently. (Fig. 3)
Rice. 3
The second term 7 can be added to 10. To do this, we divide the first term into two parts, one of which is equal to the number 3. Therefore, 9 = 3 + 6.
Rice. 4
Let's do the addition by parts:
7 + 9 = (7 + 3) + 6 = 10 + 6 = 16
The first term is 9, it lacks one unit to 10, so we break the second term into parts. 5 is 1 and 4. We add to 9 first one unit, and then the remaining four units.
9 + 5 = 9 + (1 + 4) = 14
The first term is 6, it lacks up to 10 four units, so we divide the second term into parts: 4 and 2. We add 4 to 6 first and get ten units, and then the remaining two units.
6 + 6 = 6 + (4 + 2) = 12
The first term is 4, it lacks up to 10 six, so we divide the second term 8 into parts: 6 and 2. We first add six units to 4 and get ten units, and then the remaining two units.
4 + 8 = 4 + (6 + 2) = 12
In the minuend 15 there are five units, so we divide the subtracted 7 into parts: 5 and 2. We first subtract five units from 15, we get 10. Then we subtract the remaining two units from ten.
15 - 7 = 15 - (5 + 2) = 8
In the minuend 16 there are six units, so we divide the subtracted 9 into parts: 6 and 3. First we subtract six units from 16, we get 10. And then from 10 we subtract the remaining three units.
16 - 9 = 16 - (6 + 3) = 7
In the minuend 12 there are two units, so we divide the subtracted 4 into parts: 2 and 2. From 12 we subtract 2, we get 10. And from 10 we subtract 2.
12 - 4 = 12 - (2 + 2) = 8
Answer: 12 - 4 = 8.
Using the method of addition and subtraction by parts with passing through ten is not always convenient, so you need to learn table for adding single digit numbers up to 20 by heart.
The figure shows a table that will make it easier for you to learn cases of adding single-digit numbers up to 20. (Fig. 7) 
Rice. 7
In each column, the first term is the same, and the second increases by one, which means the sum will also increase by one. Let's find the value of these amounts.
9 + 2 = 11, therefore: 9 + 3 = 12, reasoning this way, we fill out the entire table. (Fig. 8)
Rice. 8
Each line contains amounts with the same answers. Choose the way it will be easier for you to remember the answers: by columns or by rows. If you learn the table for adding single-digit numbers up to 20 well, then it will not be difficult for you to subtract single-digit numbers within 20.
References
- Alexandrova L.A., Mordkovich A.G. Mathematics 1st grade. - M: Mnemosyne, 2012.
- Bashmakov M.I., Nefedova M.G. Mathematics. 1st grade. - M: Astrel, 2012.
- Bedenko M.V. Mathematics. 1st grade. - M7: Russian word, 2012.
- Social network of educators ().
- 5klass.net ().
- Self-taught ().
Homework
1. Remember how to correctly add and subtract single-digit numbers using place value.
2. Help the frog solve the examples.
3. Solve the examples and color the picture.
