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图中有九个小九宫格,请在每个九宫格中各填上1—9的九个数,(其中两个已填)使大九宫格的竖行和横行都有1—9的九个数,并使横行的数字合乎加减运算.
There are nine small nine squares in the picture. Please fill in each of the nine squares with nine numbers from 1 to 9 (two of them are filled in) to make nine pairs of nine and nine in the vertical and horizontal. And make the number of rampant addition and subtraction operations.