In mathematics, a base N addition table defines the addition operation for numbers written in a base-4 number system. This page shows the base 4 addition table — every row header, column header, and sum below is written in base 4, not decimal. Print it directly from the page using the print button on the table.
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| + | 04 | 14 | 24 | 34 | 104 | 114 | 124 | 134 | 204 | 214 | 224 | 234 | 304 | 314 | 324 | 334 | 1004 | 1014 | 1024 | 1034 | 1104 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 04 | 0 | 1 | 2 | 3 | 10 | 11 | 12 | 13 | 20 | 21 | 22 | 23 | 30 | 31 | 32 | 33 | 100 | 101 | 102 | 103 | 110 |
| 14 | 1 | 2 | 3 | 10 | 11 | 12 | 13 | 20 | 21 | 22 | 23 | 30 | 31 | 32 | 33 | 100 | 101 | 102 | 103 | 110 | 111 |
| 24 | 2 | 3 | 10 | 11 | 12 | 13 | 20 | 21 | 22 | 23 | 30 | 31 | 32 | 33 | 100 | 101 | 102 | 103 | 110 | 111 | 112 |
| 34 | 3 | 10 | 11 | 12 | 13 | 20 | 21 | 22 | 23 | 30 | 31 | 32 | 33 | 100 | 101 | 102 | 103 | 110 | 111 | 112 | 113 |
| 104 | 10 | 11 | 12 | 13 | 20 | 21 | 22 | 23 | 30 | 31 | 32 | 33 | 100 | 101 | 102 | 103 | 110 | 111 | 112 | 113 | 120 |
| 114 | 11 | 12 | 13 | 20 | 21 | 22 | 23 | 30 | 31 | 32 | 33 | 100 | 101 | 102 | 103 | 110 | 111 | 112 | 113 | 120 | 121 |
| 124 | 12 | 13 | 20 | 21 | 22 | 23 | 30 | 31 | 32 | 33 | 100 | 101 | 102 | 103 | 110 | 111 | 112 | 113 | 120 | 121 | 122 |
| 134 | 13 | 20 | 21 | 22 | 23 | 30 | 31 | 32 | 33 | 100 | 101 | 102 | 103 | 110 | 111 | 112 | 113 | 120 | 121 | 122 | 123 |
| 204 | 20 | 21 | 22 | 23 | 30 | 31 | 32 | 33 | 100 | 101 | 102 | 103 | 110 | 111 | 112 | 113 | 120 | 121 | 122 | 123 | 130 |
| 214 | 21 | 22 | 23 | 30 | 31 | 32 | 33 | 100 | 101 | 102 | 103 | 110 | 111 | 112 | 113 | 120 | 121 | 122 | 123 | 130 | 131 |
| 224 | 22 | 23 | 30 | 31 | 32 | 33 | 100 | 101 | 102 | 103 | 110 | 111 | 112 | 113 | 120 | 121 | 122 | 123 | 130 | 131 | 132 |
| 234 | 23 | 30 | 31 | 32 | 33 | 100 | 101 | 102 | 103 | 110 | 111 | 112 | 113 | 120 | 121 | 122 | 123 | 130 | 131 | 132 | 133 |
| 304 | 30 | 31 | 32 | 33 | 100 | 101 | 102 | 103 | 110 | 111 | 112 | 113 | 120 | 121 | 122 | 123 | 130 | 131 | 132 | 133 | 200 |
| 314 | 31 | 32 | 33 | 100 | 101 | 102 | 103 | 110 | 111 | 112 | 113 | 120 | 121 | 122 | 123 | 130 | 131 | 132 | 133 | 200 | 201 |
| 324 | 32 | 33 | 100 | 101 | 102 | 103 | 110 | 111 | 112 | 113 | 120 | 121 | 122 | 123 | 130 | 131 | 132 | 133 | 200 | 201 | 202 |
| 334 | 33 | 100 | 101 | 102 | 103 | 110 | 111 | 112 | 113 | 120 | 121 | 122 | 123 | 130 | 131 | 132 | 133 | 200 | 201 | 202 | 203 |
| 1004 | 100 | 101 | 102 | 103 | 110 | 111 | 112 | 113 | 120 | 121 | 122 | 123 | 130 | 131 | 132 | 133 | 200 | 201 | 202 | 203 | 210 |
| 1014 | 101 | 102 | 103 | 110 | 111 | 112 | 113 | 120 | 121 | 122 | 123 | 130 | 131 | 132 | 133 | 200 | 201 | 202 | 203 | 210 | 211 |
| 1024 | 102 | 103 | 110 | 111 | 112 | 113 | 120 | 121 | 122 | 123 | 130 | 131 | 132 | 133 | 200 | 201 | 202 | 203 | 210 | 211 | 212 |
| 1034 | 103 | 110 | 111 | 112 | 113 | 120 | 121 | 122 | 123 | 130 | 131 | 132 | 133 | 200 | 201 | 202 | 203 | 210 | 211 | 212 | 213 |
| 1104 | 110 | 111 | 112 | 113 | 120 | 121 | 122 | 123 | 130 | 131 | 132 | 133 | 200 | 201 | 202 | 203 | 210 | 211 | 212 | 213 | 220 |
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