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 Post subject: Question from Alleyn
PostPosted: Sat Jul 30, 2016 5:35 pm 
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Joined: Thu Mar 12, 2015 4:11 pm
Posts: 171
Can anyone help please? Question from Alleyn school....

Use digits 1-9 once only to fill the gaps. 4 digit blank number x 3 = 5 blank digit number.

So : - - - - x 3 = - - - - -

Is there some simple logic I'm missing? Trial and improvement is taking too long.

Many thanks


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 Post subject: Re: Question from Alleyn
PostPosted: Sat Jul 30, 2016 5:40 pm 
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Joined: Mon Feb 12, 2007 1:21 pm
Posts: 11934
I think we might have had this before.

We know units of the left can't be 1 or we'd get another 3 in the answer, or a 5 as we'd get another 5.

What can we say about the Thousands if we get a five digit answer?

Does that help you get started?


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 Post subject: Re: Question from Alleyn
PostPosted: Sat Jul 30, 2016 5:40 pm 
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Joined: Thu Mar 12, 2015 4:11 pm
Posts: 171
I see someone already answered it previously... I will have a look at the thread. Should have done that first.


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 Post subject: Re: Question from Alleyn
PostPosted: Sat Jul 30, 2016 5:41 pm 
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Joined: Thu Mar 12, 2015 4:11 pm
Posts: 171
Yes it does. Many thanks


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