b , ( a + b ). ( c + d ) stand for the products of those numbers or letters.
| I. | 123·4 stands for | 1234 | or 123 | 4 | or 123 + | 4 | |
|---|
| 10 | 10 | 10 | |
| 12·34 | 1234 | or 12 | 34 | or 12 + | 3 | + | 4 | |
| 100 | 100 | 10 | 100 | |
| 1·234 | 1234 | or 1 | 234 | or 1 + | 2 | + | 3 | + | 4 | |
| 1000 | 1000 | 10 | 100 | 1000 | |
| ·1234 | 1234 | | | or | 1 | + | 2 | + | 3 | + | 4 | |
| 10000 | | 10 | 100 | 1000 | 10000 | |
| ·01234 | 1234 | | | or | | | 1 | + | 2 | + | 3 | + | 4 | |
| 100000 | | | 100 | 1000 | 10000 | 100000 | |
| ·001234 | 1234 | | | or | | | | | 1 | + | 2 | + | 3 | + | 4 |
| 1000000 | | | | 1000 | 10000 | 100000 | 1000000 |
| II. | ·01003 is | 1003 | or | 1 | + | 3 |
|---|
| 100000 | 100 | 100000 |
| ·1003 is | 1003 | or | 1 | + | 3 |
| 10000 | 10 | 10000 |
| 10·03 is | 1003 | or | 10 | + | 3 |
| 100 | 100 |
| 100·3 is | 1003 | or | 100 | + | 3 |
| 10 | 10 |
| III. | ·1238 | = | 1 | + | 2 | + | 8 | + | 3 |
|---|
| 10 | 100 | 1000 | 10000 |
| = | ·1 | + | ·02 | + | ·008 | + | ·0003 |
| = | ·1 | + | ·0283 | = | ·12 | + | ·0083 |
| = | ·128 | + | ·0003 | = | ·108 | + | ·0203 |
| = | ·1003 | + | ·028 | = | ·1203 | + | ·008 |
