tag:blogger.com,1999:blog-3907216.post6675340940060082986..comments2024-03-22T22:39:49.773-05:00Comments on I don't know, but . . .: Alternative mathjameshttp://www.blogger.com/profile/01792036361407527304noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-3907216.post-53068315997254154622016-10-30T21:59:24.581-05:002016-10-30T21:59:24.581-05:00You can't take three from two,
Two is less tha...You can't take three from two,<br />Two is less than three,<br />So you look at the four in the tens place.<br />Now that's really four tens,<br />So you make it three tens,<br />Regroup, and you change a ten to ten ones,<br />And you add them to the two and get twelve,<br />And you take away three, that's nine.<br />Is that clear?<br /><br />Now instead of four in the tens place<br />You've got three,<br />'cause you added one,<br />That is to say, ten, to the two,<br />But you can't take seven from three,<br />So you look in the hundreds place.<br /><br />From the three you then use one<br />To make ten ones...<br />(and you know why four plus minus one<br />Plus ten is fourteen minus one?<br />'cause addition is commutative, right.)<br />And so you have thirteen tens,<br />And you take away seven,<br />And that leaves five...<br /><br />Well, six actually.<br />the idea is the important thing.<br /><br />Now go back to the hundreds place,<br />And you're left with two.<br />And you take away one from two,<br />And that leaves...?<br /><br />Everybody get one?<br />Not bad for the first day!<br /><br />Hooray for new math,<br />New-hoo-hoo-math,<br />It won't do you a bit of good to review math.<br />It's so simple,<br />So very simple,<br />That only a child can do it!<br />Now that actually is not the answer that I had in mind, because the book that I got this problem out of wants you to do it in base eight. but don't panic. base eight is just like base ten really<br />if you're missing two fingers. shall we have a go at it? hang on.<br /><br />You can't take three from two,<br />Two is less than three,<br />So you look at the four in the eights place.<br />Now that's really four eights,<br />So you make it three eights,<br />Regroup, and you change an eight to eight ones,<br />And you add them to the two,<br />And you get one-two base eight,<br />Which is ten base ten,<br />And you take away three, that's seven.<br /><br />Now instead of four in the eights place<br />You've got three,<br />'cause you added one,<br />That is to say, eight, to the two,<br />But you can't take seven from three,<br />So you look at the sixty-fours.<br /><br />"sixty-four? how did sixty-four get into it? " I hear you cry.<br />Well, sixty-four is eight squared, don't you see?<br />(well, you ask a silly question, and you get a silly answer.)<br /><br />From the three you then use one<br />To make eight ones,<br />And you add those ones to the three,<br />And you get one-three base eight,<br />Or, in other words,<br />In base ten you have eleven,<br />And you take away seven,<br />And seven from eleven is four.<br />Now go back to the sixty-fours,<br />And you're left with two,<br />And you take away one from two,<br />And that leaves...?<br /><br />Now, let's not always see the same hands.<br />One, that's right!<br />Whoever got one can stay after the show and clean the erasers.<br /><br />Hooray for new math,<br />New-hoo-hoo-math,<br />It won't do you a bit of good to review math.<br />It's so simple,<br />So very simple,<br />That only a child can do it!The Mad Sopranohttps://www.blogger.com/profile/06310574598406502941noreply@blogger.com