Subtraction Of Whole Numbers Using An Expanded Method

(the last step towards using a standard written method for subtraction)

For more maths help & free games related to this, visit: www.makemymathsbetter.com

Part 5 of 5: How to deal with zeros when subtracting.

Subtraction Of Whole Numbers Using An Expanded Method

(the last step towards using a standard written method for subtraction)

For more maths help & free games related to this, visit: www.makemymathsbetter.com

Part 5 of 5: How to deal with zeros when subtracting.It is important that you have already viewed and understood parts 1, 2, 3

& 4 before you go any further.

How to deal with zeros when subtracting, for example 700 – 286

700

200

0

80

0

6_

How to deal with zeros when subtracting, for example 700 – 286First, an adjustment is made from the hundreds

700

200

0

80

0

6_

600

How to deal with zeros when subtracting, for example 700 – 286First, an adjustment is made from the hundreds to the tens.

700

200

0

80

0

6_

100 600

How to deal with zeros when subtracting, for example 700 – 286First, an adjustment is made from the hundreds to the tens.Then, from the tens

700

200

0

80

0

6_

100 600

90

How to deal with zeros when subtracting, for example 700 – 286First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

700

200

0

80

0

6_

100 10 600

90

How to deal with zeros when subtracting, for example 700 – 286First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

700

200

0

80

0

6_

100 10 600

4

90

The units can then be subtracted.

How to deal with zeros when subtracting, for example 700 – 286First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

700

200

0

80

0

6_

100 10 600

4

90

Followed by the tens.

10

How to deal with zeros when subtracting, for example 700 – 286First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

700

200

0

80

0

6_

100 10 600

4

90

10

And finally the hundreds.

400

How to deal with zeros when subtracting, for example 700 – 286First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

700

200

0

80

0

6_

100 10 600

410400 + + = 414

90

To complete the sum, add up the 3 answers to give a final total.

How to deal with zeros when subtracting, for example 700 – 286First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

700

200

0

80

0

6_

100 10 600

410400 + + = 414

90

To complete the sum, add up the 3 answers to give a final total.

How to deal with zeros when subtracting, for example 700 – 286First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

700

200

0

80

0

6_

100 10 600

410400 + + = 414

90

To complete the sum, add up the 3 answers to give a final total.

7 0 0

2 8 6_

How to deal with zeros when subtracting, for example 700 – 286First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

700

200

0

80

0

6_

100 10 600

410400 + + = 414

90

To complete the sum, add up the 3 answers to give a final total.

7 0 0

2 8 6_

Firstly, an adjustment is made from the hundreds

6

How to deal with zeros when subtracting, for example 700 – 286First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

700

200

0

80

0

6_

100 10 600

410400 + + = 414

90

To complete the sum, add up the 3 answers to give a final total.

7 0 0

2 8 6_

Firstly, an adjustment is made from the hundreds to the tens

6 10

How to deal with zeros when subtracting, for example 700 – 286First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

700

200

0

80

0

6_

100 10 600

410400 + + = 414

90

To complete the sum, add up the 3 answers to give a final total.

7 0 0

2 8 6_

Firstly, an adjustment is made from the hundreds to the tens. Then from the tens

6 10

9

How to deal with zeros when subtracting, for example 700 – 286First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

700

200

0

80

0

6_

100 10 600

410400 + + = 414

90

To complete the sum, add up the 3 answers to give a final total.

7 0 0

2 8 6_

Firstly, an adjustment is made from the hundreds to the tens. Then from the tens to the units.

10

9

106

How to deal with zeros when subtracting, for example 700 – 286First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

700

200

0

80

0

6_

100 10 600

410400 + + = 414

90

To complete the sum, add up the 3 answers to give a final total.

7 0 0

2 8 6_

The units can then be subtracted,

10

9

10

4

6

How to deal with zeros when subtracting, for example 700 – 286First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

700

200

0

80

0

6_

100 10 600

410400 + + = 414

90

To complete the sum, add up the 3 answers to give a final total.

7 0 0

2 8 6_

The units can then be subtracted, followed by the tens

10

9

10

1 4

6

How to deal with zeros when subtracting, for example 700 – 286First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

700

200

0

80

0

6_

100 10 600

410400 + + = 414

90

To complete the sum, add up the 3 answers to give a final total.

7 0 0

2 8 6_

The units can then be subtracted, followed by the tens and finally the hundreds.

10

9

10

4 1 4

6

The same technique is used when there is just a zero in the tens column, for example 803 – 236

The same technique is used when there is just a zero in the tens column, for example 803 – 236

800

200

0

30

3

6_

The same technique is used when there is just a zero in the tens column, for example 803 – 236First, an adjustment is made from the hundreds

800

200

0

30

3

6_

700

The same technique is used when there is just a zero in the tens column, for example 803 – 236First, an adjustment is made from the hundreds to the tens.

800

200

0

30

3

6_

700 100

The same technique is used when there is just a zero in the tens column, for example 803 – 236First, an adjustment is made from the hundreds to the tens.Then, from the tens

800

200

0

30

3

6_

700 100

90

The same technique is used when there is just a zero in the tens column, for example 803 – 236First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

800

200

0

30

3

6_

700 100

90

13

The same technique is used when there is just a zero in the tens column, for example 803 – 236First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

800

200

0

30

3

6_

700 100

90

13 The units can then be subtracted.

7

The same technique is used when there is just a zero in the tens column, for example 803 – 236First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

800

200

0

30

3

6_

700 100

90

13

7

Followed by the tens.

60

The same technique is used when there is just a zero in the tens column, for example 803 – 236First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

800

200

0

30

3

6_

700 100

90

13

760

And finally the hundreds.

500

The same technique is used when there is just a zero in the tens column, for example 803 – 236First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

800

200

0

30

3

6_

100 13 700

760500 + + = 567

90

To complete the sum, add up the 3 answers to give a final total.

The same technique is used when there is just a zero in the tens column, for example 803 – 236First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

800

200

0

30

3

6_

100 13 700

760500 + + = 567

90

To complete the sum, add up the 3 answers to give a final total.

The same technique is used when there is just a zero in the tens column, for example 803 – 236First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

800

200

0

30

3

6_

100 13 700

760500 + + = 567

90

To complete the sum, add up the 3 answers to give a final total.

8 0 3

2 3 6_

The same technique is used when there is just a zero in the tens column, for example 803 – 236First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

800

200

0

30

3

6_

100 13 700

760500 + + = 567

90

To complete the sum, add up the 3 answers to give a final total.

8 0 3

2 3 6_

Firstly, an adjustment is made from the hundreds

7

The same technique is used when there is just a zero in the tens column, for example 803 – 236First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

800

200

0

30

3

6_

100 13 700

760500 + + = 567

90

To complete the sum, add up the 3 answers to give a final total.

8 0 3

2 3 6_

Firstly, an adjustment is made from the hundreds to the tens

7 10

The same technique is used when there is just a zero in the tens column, for example 803 – 236First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

800

200

0

30

3

6_

100 13 700

760500 + + = 567

90

To complete the sum, add up the 3 answers to give a final total.

8 0 3

2 3 6_

Firstly, an adjustment is made from the hundreds to the tens. Then from the tens

7 10

9

The same technique is used when there is just a zero in the tens column, for example 803 – 236First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

800

200

0

30

3

6_

100 13 700

760500 + + = 567

90

To complete the sum, add up the 3 answers to give a final total.

8 0 3

2 3 6_

Firstly, an adjustment is made from the hundreds to the tens. Then from the tens to the units

7 10

9

13

The same technique is used when there is just a zero in the tens column, for example 803 – 236First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

800

200

0

30

3

6_

100 13 700

760500 + + = 567

90

To complete the sum, add up the 3 answers to give a final total.

8 0 3

2 3 6_

The units can then be subtracted,

10

9

13

7

7

The same technique is used when there is just a zero in the tens column, for example 803 – 236First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

800

200

0

30

3

6_

100 13 700

760500 + + = 567

90

To complete the sum, add up the 3 answers to give a final total.

8 0 3

2 3 6_

The units can then be subtracted, followed by the tens

10

9

13

6 7

7

The same technique is used when there is just a zero in the tens column, for example 803 – 236First, an adjustment is made from the hundreds to the tens.Then, from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

800

200

0

30

3

6_

100 13 700

760500 + + = 567

90

To complete the sum, add up the 3 answers to give a final total.

8 0 3

2 3 6_

The units can then be subtracted, followed by the tens and finally the hundreds.

10

9

13

5 6 7

7

Again, a similar technique is used when there is just a zero in the units column, for example 570 – 124

Again, a similar technique is used when there is just a zero in the units column, for example 570 – 124

500

100 20

0

4_70

Again, a similar technique is used when there is just a zero in the units column, for example 570 – 124First, an adjustment is made from the tens

500

100 20

0

4_70

60

Again, a similar technique is used when there is just a zero in the units column, for example 570 – 124First, an adjustment is made from the tens to the units

500

100 20

0

4_70

60 10

Again, a similar technique is used when there is just a zero in the units column, for example 570 – 124First, an adjustment is made from the tens to the units

500

100 20

0

4_70

60 10 The units can then

be subtracted.

6

Again, a similar technique is used when there is just a zero in the units column, for example 570 – 124First, an adjustment is made from the tens to the units

500

100 20

0

4_70

60 10

640

The units can then be subtracted. Followed by the tens

Again, a similar technique is used when there is just a zero in the units column, for example 570 – 124First, an adjustment is made from the tens to the units

500

100 20

0

4_70

60 10 The units can then

be subtracted. Followed by the tens and then the hundreds. 640400

Again, a similar technique is used when there is just a zero in the units column, for example 570 – 124First, an adjustment is made from the tens to the units

500

100 20

0

4_70

60 10

640400

To complete the sum, add up the 3 answers to give a final total.

+ + = 446

Again, a similar technique is used when there is just a zero in the units column, for example 570 – 124First, an adjustment is made from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

500

100 20

0

4_70

60 10

640400

To complete the sum, add up the 3 answers to give a final total.

+ + = 446

Again, a similar technique is used when there is just a zero in the units column, for example 570 – 124First, an adjustment is made from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

500

100 20

0

4_70

60 10

640400

To complete the sum, add up the 3 answers to give a final total.

+ + = 446

5 7 0

1 2 4_

Again, a similar technique is used when there is just a zero in the units column, for example 570 – 124First, an adjustment is made from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

500

100 20

0

4_70

60 10

640400

To complete the sum, add up the 3 answers to give a final total.

+ + = 446

5 7 0

1 2 4_

Firstly, an adjustment is made from the tens

6

Again, a similar technique is used when there is just a zero in the units column, for example 570 – 124First, an adjustment is made from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

500

100 20

0

4_70

60 10

640400

To complete the sum, add up the 3 answers to give a final total.

+ + = 446

5 7 0

1 2 4_

Firstly, an adjustment is made from the tens to the units

6 10

Again, a similar technique is used when there is just a zero in the units column, for example 570 – 124First, an adjustment is made from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

500

100 20

0

4_70

60 10

640400

To complete the sum, add up the 3 answers to give a final total.

+ + = 446

5 7 0

1 2 4_

6 10 The units can then be subtracted,

6

Again, a similar technique is used when there is just a zero in the units column, for example 570 – 124First, an adjustment is made from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

500

100 20

0

4_70

60 10

640400

To complete the sum, add up the 3 answers to give a final total.

+ + = 446

5 7 0

1 2 4_

6 10

4 6

The units can then be subtracted, followed by the tens

Again, a similar technique is used when there is just a zero in the units column, for example 570 – 124First, an adjustment is made from the tens to the units

When this can be performed confidently, it can be simplified to a standard written method:

500

100 20

0

4_70

60 10

640400

To complete the sum, add up the 3 answers to give a final total.

+ + = 446

5 7 0

1 2 4_

6 10

4 4 6

The units can then be subtracted, followed by the tens and finally the hundreds

That’s it for now......

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