What is an 1970d dime worth with the word dime missing on the back of the coin instead of one dime it has one?

Your coins is either : 1) struck through something -- worth $50 or less 2) struck with low pressure -- worth maybe $100 3) been damaged or excessively worn -- no added value Try checking the links towards the bottom of my show schedule page to see if there is an upcoming coin show in your area, where you can take the coin and get it examined first hand : http://www.workingmancoins.com/ShowSchd.htm