The tag is assumptive and inaccurate, has offended a few different people, and should be revoked.
Monster was not meant for really large expressions, but for simple, general calculations.
You put in two numbers, and you get out one number.
Without an agreed upon order of when we perform each of these operations to calculate a written expression, we could get two different answers.
Does that sound about right, or am I misunderstanding your findings.
This will cause you to do only 40% of the actual listed damage.