Could you change it so pressing the operator is a no op then? That way, press it or not, the result is the same. Even knowing the instructions, I'm finding it

Could you change it so pressing the operator is a no op then? That way, press it or not, the result is the same. Even knowing the instructions, I'm finding it very difficult not to press the operator tiles, as it just feels like a natural thing to do. Love the game BTW, I'm getting my son on this tomorrow too, he'll love it :)