# Adding by 6IU3D4n

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```									Adding
Adding by Partitioning Vertically

156
+   232

300           1 0 0 + 200
80            50+30
8            6+2

388
Formal
Partitioning
Vertically       Written
Method

2378            2 3 7 8
+    1149          + 1 1 4 9

3000            3 5 2 7
400             1 1
110
17

3527
Formal
Partitioning
Vertically       Written
Method

4578            4 5 7 8
+    2349          + 2 3 4 9

6000            6 9 2 7
800             1 1
110
17

6927
Formal
Partitioning
Vertically       Written
Method

4687            4 6 8 7
+    5749          + 5 7 4 9

9000          1 0 4 3 6
1300            1 1 1
120
16

10436
Subtracting
Subtraction by adding on.

502 - 198 = 304
502
+2    +300       +2              - 198

2      (to 200)

198        200   500        502
300       (to 500)
2      (to 502)

304
Subtraction by adding on.

613 - 279 = 334
613
+1     +20     +300 +13            - 279

1       (to 280)
20       (to 300)
279        280     300     600   613
300       (to 600)
13       (to 613)
334
Subtraction by adding on.

846 - 458 = 388
846
+42 +300   +46                - 458

42       (to 500)
300       (to 800)
458     500   800      846
46       (to 846)
388
Subtraction by adding on.

2645 - 898= 1746
2645
+2    +100 +1000     +645       - 898

2      (to 900)
100     (to 1000)
898        900   1000   2000   2645
1000     (to 2000)
645     (to 2645)
1746
Subtraction by adding on.

3567 - 742= 2825
3567
+58 +200 +2000    +567       - 742

58      (to 800)
200     (to 1000)
742     800   1000   3000   3567
2000     (to 3000)
567     (to 3567)
2825
Subtraction by adding on.

3879 - 1352 = 2525
3879
+48 +600 +1000     +879       - 1352

48     (to 1400)
600     (to 2000)
1352   1400 2000   3000   3879
1000     (to 3000)
879     (to 3879)
2525
1 11
Subtraction by adding on.

6457 - 2469 = 3988
6457
+31 +500 +3000     +457       - 2469

31     (to 2500)
500     (to 3000)
2469   2500 3000   6000   6457
3000     (to 6000)
457     (to 6457)
3988
Subtraction by adding on.

5021 - 1989            = 3032

+1   +10     +1000    +1000      +1000          +20      +1

1989    1990 2000         3000       4000       5000         5020    5021

Th          H      T       U
3000                30       2
Subtraction by adding on vertically

6008
- 2997
3       (3000)
3000        (6000)
8      (6008)
3011
Subtraction by adding on vertically

5003
- 1989
11       (2000)
3000         (5000)
3       (6008)
3014
5 2 3 9
-1 5 6 7
3   (1570)
3 0   (1600)
4 0 0   (2000)
3 2 3 9   (5239)
3 6 5 3
1
1
4 1 1
5 2 3 9
-1 5 6 7
3 6 7 2
Adding Decimals
Formal
Partitioning
Vertically         Written
Method

65.4
+    39.3               65.4
.7       +    39.3
14.0              10 4. 7
90.0               1

104.7
Formal
Partitioning
Vertically        Written
Method

28.7
+    39.3              28.7
1.0        +   39.3
17.0              5 8.0
50.0              1 1

68.0
Formal
Partitioning
Vertically        Written
Method

28.7
+    47.8              28.7
1.5        +   47.8
15.0              7 6.5
60.0              1 1

76.5
Formal
Partitioning
Vertically        Written
Method

28.7
28.7
47.8
47.8
+    53.6
+    53.6
2.1          13 0.1
18.0
2 2
110.0

1 3 0.1
1
Adding by Partitioning Vertically

3.12
+    2.32

.04
.40
5.00
5.44
Formal
Partitioning
Vertically        Written
Method

5.91
+    1.86              5.91
.07        +   1.86
1.70             7.7 7
6.00              1

7.77
Partitioning       Formal
Vertically        Written
Method

3.89
4.37
3.89
+    2.56
4.37
.22        +    2.56
1.60              10.8 2
9.00
12
10.82
Subtracting Decimals
Decimals

0   0.1   0.2   0.3   0.4   0.5    0.6   0.7   0.8   0.9   1.0
Subtraction by adding on.

24.3 - 7.9 = 16.4
24.3
+0.1    +2.0   +10.0 +4.3       - 7.9

0.1        (to 8.0)
2.0       (to 10.0)
7.9      8.0   10.0   20.0 24.3
10.0       (to 20.0)
4.3       (to 24.3)
16 .4
Subtraction by adding on.

36.8 - 8.7 = 28.1
36.8
+0.3    +1.0   +20.0 +6.8       - 8.7

0.3        (to 9.0)
1.0       (to 10.0)
8.7      9.0   10.0   30.0 36.8
20.0       (to 30.0)
6.8       (to 36.8)
28 .1
1
Subtraction by adding on.

42.8 - 19.3 = 23.5
42.8
+0.7 +10.0 +10.0 +2.8         - 19.3

0.7       (to 20.0)
10.0       (to 30.0)
19.3   20.0   30.0   40.0 42.8
10.0       (to 40.0)
2.8       (to 42.8)
23 .5
1
Subtraction by adding on.

56.9 - 23.6 = 33.3
56.9
+0.4   +6.0   +20.0 +6.9       - 23.6

0.4       (to 24.0)
6.0       (to 30.0)
23.6   24.0   30.0   50.0 56.9
20.0       (to 50.0)
6.9       (to 56.9)
33 .3
11
Decimals

0   0.1   0.2   0.3   0.4   0.5    0.6   0.7   0.8   0.9   1.0
Subtraction by adding on.

£7.85 - £3.49             = £4.36
£7.85
+0.51    +3.0     +0.85              - £3.49

0.51      (to £4.00)
3.00      (to £7.00)
3.49     4.0     7.0     7.85
0.85      (to £7.85)
£4.3 6
1
Subtraction by adding on.

£9.63 - £5.28             = £4.35
£9.63
+0.72    +3.0     +0.63              - £5.28

0.72      (to £6.00)
3.00      (to £9.00)
5.28     6.0     9.0     9.63
0.63      (to £9.63)
£4.3 5
1
Subtraction by adding on.

£12.51 - £7.83 = £4.68
£12.51
+0.17    +4.0   +0.51          - £7.83

0.17       (to £8.00)
4.00      (to £12.00)
7.83     8.0   12.0   12.51
0.51      (to £12.51)
£4.6 8
Subtraction by adding on.

£23.94 - £17.62 = £6.32
£23.94
+0.38     +2.0    +3.0 +0.94       - £17.62

0.38    (to £18.0)
2.00    (to £20.0)
17.62     18.0   20.0   23.0 23.94
3.00    (to £23.0)
0.94    (to £23.94)
£6.3 2
11
Subtraction by adding on.

£35.12 - £27.59 = £7.53
£35.12
+0.41     +2.0    +5.0 +0.12       - £27.59

0.41    (to £28.00)
2.00    (to £30.00)
27.59     28.0   30.0   35.0 23.94
5.00    (to £35.00)
0.12    (to £35.12)
£7.5 3

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