6431hoho Posted April 22, 2005 Share Posted April 22, 2005 32*39 =32*(40-1) =1280-32 =1280-30-2 =1250-2 =1248 5032-1098 =5032-1000-90-8 =4032-90-8 =4032-100+10-8 =3932+10-8 =3942-8 =3934 Ok...some of the steps are ridiculous but it's sometimes easier Link to comment Share on other sites More sharing options...
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