counting money,adding and subtracting time.,counting money and subtracting/adding,you use them while using money,people use decimals work with time,you can use it to add money,math,they are pretty easy,weight,adding decimals is used to count money,used in money a lot,height and weight,they are used when cooking and baking,mesuring objects,adding and subtrackted it is easy,to see how much you get when you put the,for getting rid of something,they are pretty easy do do,they are used in finding weights,they are used if you need to add money,with money,adding and subtracted time,they are used in baking food like cake,decimals are usually used for weights,to find out how much money you have,you use decimals when adding mass.,they can be used for weight,for counting something,mostly used for money,with money like $299.59-$5.99.,i add it by the numbers that i have,