If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content
Current time:0:00Total duration:2:19

Adding & subtracting decimals word problem

CCSS.Math:

Video transcript

Leo has four thousand five hundred twenty two dollars and eight cents in his bank account he deposits another eight hundred seventy-five dollars and fifty cents and then withdraws three hundred dollars in cash how much is left in his account so he's starting with four thousand five hundred twenty two dollars and eight cents let's write that down four thousand five hundred twenty two dollars and eight cents and then he deposits he deposits or he adds another eight hundred and seventy five dollars and fifty cents so he's going to add eight hundred and seventy five dollars and fifty cents when you deposit into an account you're putting something into the count or you're adding to the account so after he adds that eight hundred seventy-five dollars and fifty cents what does he have so we go back to the penny spot or we could view that as the hundredths a penny is one hundredths of a dollar eight let me switch colors we have eight plus zero is 8 0 plus five is five have the decimal right there 2 plus 5 is 7 2 plus 7 is 9 5 plus 8 is 13 put the three down here and regroup the 1 or carry the one one plus four is five so after the 875 dollar and 50 cent deposit he has five thousand three hundred and ninety-seven dollars and 58 cents then he withdraws he withdraws three hundred dollars in cash or he takes out three hundred dollars so we'll have to subtract that so then he withdraws three hundred three hundred dollars and I just added some trailing decimals at trailing zeros after the decimal three hundred dollars is the same thing as three hundred dollars and zero cents and then we subtract and then we can subtract 8 minus 0 is 8 5 minus 0 is 5 we have our decimal right there 7 minus 0 is 7 9 minus 0 is 9 3 minus 3 is zero and then five - nothing here is five so he is left with in his account five thousand ninety seven dollars and fifty eight cents