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Method 1: Use the template directly
After opening the MathType formula editor, edit the corresponding formula in the work area.
When you need to enter a minus sign, select the [Operator] template in the MathType toolbar template, select the minus sign among the symbols listed, and click it. The minus sign will appear in the work area. symbol.
Method 2: Insert symbol
In the MathType work interface, select [Edit] - [Insert symbol] under the menu command, and a pop-up will appear. Insert symbol window.
In the insertion symbol window, select [Description] in the drop-down menu of [View], pull the scroll bar of the symbol panel below, find the minus plus sign, click it and then click [Insert] , [Close] button to insert minus and plus signs in the work area.
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