How to add a number to an 8-word virtual box

Select the corresponding text box in which you can enter content. You can directly select the corresponding text box and enter content in it.

Jiugongge Rule: Fill in the Jiugongge box with the nine numbers 1 to 9, and require that the numbers on each row, column and diagonal line add up to be equal.

Click insert > shape > basic shape > rectangle tool, hold down the Shift key and draw a square on the page; Click the right mouse button to pop up the shortcut menu and add a text command. At this point, the cursor enters the square, and you can enter words or letters.