Addition of 1 and 99999999.999999Date: 1 May 1995 08:52:38 -0400 From: Ahmad Hajiyahya Subject: (none) Help 1+99999999999999.9999999=? Date: 1 May 1995 10:33:44 -0400 From: Dr. Sydney Subject: Re: your mail Hi Ahmad, If instead, you really don't mean those last 7 9's after the decimal point to go on forever, but instead you see the second number as having only 7 (as opposed to infinite) 9's after the decimal point, you would approach the problem just as you would any other simple addition problem. I would write the numbers on top of one another so that the decimal points line up (remember that 1 = 1.0000000, right?), then add corresponding columns, making sure you "carry" when necessary. The first steps should look like this: 11 99999999999999.9999999 + 1.0000000 ---------------------- *************00.9999999 See if you can finish this one up (fill in the stars). Thanks for the question! ---Sydney, "Dr. Math" Date: 1 May 1995 10:24:13 -0400 From: Dr. Ken Subject: Re: .99999999999 Hello there! Something to keep in mind is that .99999999999999999..... = 1. So you could simplify your problem to read 1+100000000000000=?, and then it's more clear that the answer is 100000000000001. Thanks for the question! -K |
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