table of addition up to 12
Because of the commutative property of addition, it does not matter if the row or the column gives the first operand.
It is obvious that the longest northwest to southeast diagonal contains numbers of the form .
| 单词 | TableOfAdditionUpTo12 |
| 释义 | table of addition up to 12Because of the commutative property of addition, it does not matter if the row or the column gives the first operand. It is obvious that the longest northwest to southeast diagonal contains numbers of the form . |
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