Answers 729 900 1,000 This is asking "how many numbers are there from 0 to 999 ? " :) (remember to include 0) They want all the passwords from 000 through 999 So that's 10 choices for each of the three places. 10^3 = 1000. :) or just list them all 000 001 002 003 ... 997 998 999 Which is 1,000 total codes.
You order 4 pizzas for a party. At the end of the party only half of a pizza is left. How much pizza did the guests eat? That's one problem can't think of a 2nd one.
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