tag:blogger.com,1999:blog-5551517079571065499.post6682212266114107310..comments2013-10-01T00:08:32.704+01:00Comments on Head's learning log: Magic momentsDj Macdonaldhttp://www.blogger.com/profile/11523246242824359807noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-5551517079571065499.post-79415717993837265032009-10-04T09:56:47.418+01:002009-10-04T09:56:47.418+01:00The boy solved this in a different way - a solutio...The boy solved this in a different way - a solution I have not seen before. <br /><br />I bought him a (well deserved) three course lunch!Dj Macdonaldhttps://www.blogger.com/profile/11523246242824359807noreply@blogger.comtag:blogger.com,1999:blog-5551517079571065499.post-49135623714834123642009-10-03T15:05:16.724+01:002009-10-03T15:05:16.724+01:00good idea. Please make some of them ones they will...good idea. Please make some of them ones they will possibly use in everyday adult life!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5551517079571065499.post-9535721753521462502009-09-09T19:20:19.870+01:002009-09-09T19:20:19.870+01:00As Gauss is supposed to have done many years ago
1...As Gauss is supposed to have done many years ago<br />1 + 2 + 3 + 4 +.....+97+98+99<br />Reverse the order<br />99+98 +97 +96 + + 3+ 2+ 1<br /><br />add each pair vertically<br />= 100 times 99<br />=9900 which is twice what you originally wanted<br />Required total 9900/2<br />= 4950<br /><br />All the best<br />DaveDave Parkernoreply@blogger.comtag:blogger.com,1999:blog-5551517079571065499.post-32899201932594806042009-09-08T22:49:54.673+01:002009-09-08T22:49:54.673+01:00Hi Dave - good to hear from you. I asked the lad t...Hi Dave - good to hear from you. I asked the lad to ad the numbers from 1 to 99. How would you solve this? Delighted to hear that Jennifer is pursuing career in teaching.<br /><br />DonaldDj Macdonaldhttps://www.blogger.com/profile/11523246242824359807noreply@blogger.comtag:blogger.com,1999:blog-5551517079571065499.post-87073646328135960962009-08-29T16:50:05.703+01:002009-08-29T16:50:05.703+01:00Donald - Hope you are fine.
Can you tease us with ...Donald - Hope you are fine.<br />Can you tease us with the problem?<br />You and Mr Russell may be interested that my daughter Jennifer is a NQT at Gilmerton Primary this year<br />Best wishes<br />Dave ParkerDave Parkernoreply@blogger.comtag:blogger.com,1999:blog-5551517079571065499.post-63956653543511423562009-08-29T16:43:27.446+01:002009-08-29T16:43:27.446+01:00I hope that you boought him pudding as well then! ...I hope that you boought him pudding as well then! Hope to see you soon. OBolliebrayhttps://www.blogger.com/profile/05044300730472453760noreply@blogger.com