There are 100 cents in a dollar. Coins come in the following denominations: $.01 or 1 cent (a penny,a cent, one cent), $.05 or 5 cents (a nickel, five cents),$.1 or 10 cents (a dime, ten cents), $.25 or 25 cents(a quarter, two bits, twenty-five cents), and $.50 or50 cents (a fifty-cent piece).Coins are called "change", "small change", or"silver" though they aren’t made of silver anymore.Coins are generally recognized by their size, butsomebody "goofed" on the dime, which is smaller than either a nickel or a penny. All the others are in size order.One more word for you: don’t hold out your hand with either bills or coins and expect someone to take the correct change from you. That cannot be done in any Western country.一美元中有一百美分。硬币是按下列币值铸造的：一美分，五美分，十美分，二十五美分，五十美分。硬币也叫"零钱"，"小钱"，或"银币"，虽然它们不再是用银子铸成的。总的说来，硬币是通过大小来识别的，但总有人把十美分搞错，它比五美分和一美分都要小。其他的都按币值的大小顺序排列。还有一点要说明：你不能伸出手，托出一把纸币和硬币而希望别人从你那里拿走数目正确的零钱。这在任何西方国家都是不好的。