2 DIGIT SUBTRACTION
(with regrouping)
In this lesson you will learn to subtract 2-digit numbers... Look at the following subtraction:
45 - 37 -------
45 - 37 -------
3 15
4 5
- 3 7 -------
3 15
4 5
- 37 ------8
3 15
4 5
- 37 ------0 8
Very good, now try to do this other subtraction:
51 - 36 -------
51 - 36 -------
4 11
5 1
- 36 -------
4 11
5 1
- 36 ------5
4 11
5 1
- 36 ------15
Now, let’s look at another example:
65 - 28 -------
65 - 28 -------
5 15
6 5
- 28 -------
5 15
6 5
- 28 ------7
5 15
6 5
- 28 ------37
Now you try it:
1.
30 - 15 -----
2.
58 - 29 ------
1.
30 - 15 -----
2.
58 - 29 ------
1.
2 10
3 0
- 15 -----
2.
58 - 29 ------
1.
2 10
3 0
- 15 ----5
2.
58 - 29 ------
1.
2 10
3 0
- 15 ----15
2.
58 - 29 ------
1.
2 10
3 0
- 15 ----15
2.
58 - 29 ------
1.
2 10
3 0
- 15 ----15
2.
4 18
5 8
- 2 9 ------
1.
2 10
3 0
- 15 ----15
2.
4 18
5 8
- 2 9 -----9
1.
2 10
3 0
- 15 ----15
2.
4 18
5 8
- 2 9 -----9
1.
2 10
3 0
- 15 ----15
2.
4 18
5 8
- 2 9 -----2 9
3.
41 - 13 -----
4.
75 - 38 ------
3.
41 - 13 -----
4.
75 - 38 ------
3.
3 11
4 1
- 1 3 -----
4.
75 - 38 ------
3.
3 11
4 1
- 1 3 -----8
4.
75 - 38 -------
3.
3 11
4 1
- 1 3 -----2 8
4.
75 - 38 -------
3.
3 11
4 1
- 1 3 -----2 8
4.
75 - 38 -------
3.
3 11
4 1
- 1 3 -----2 8
4.
6 15
7 5
- 38 -------
3.
3 11
4 1
- 1 3 -----2 8
4.
6 15
7 5
- 38 ------7
3.
3 11
4 1
- 1 3 -----2 8
4.
6 15
7 5
- 38 ------7
3.
3 11
4 1
- 1 3 -----2 8
4.
6 15
7 5
- 38 ------3 7
THE END