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 Post subject: 210 using + x 2 3 5 17 19Posted: Mon Nov 26, 2007 7:28 pm
Can anyone help.
'Can you make 210 using x + and all the following numbers once each; 2, 3, 5, 17, 19?
At the moment we're tempted to write 'no.'
Thank you.

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 Post subject: Posted: Mon Nov 26, 2007 7:35 pm

5x((19+17) + (2 x 3)) = 5x(36 + 6) = 5 x (42) = 210

MathsMan

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 Post subject: Posted: Mon Nov 26, 2007 7:39 pm

Joined: Tue Dec 13, 2005 12:49 pm
Posts: 1647
Location: berkshire
19 x 5 x 2 = 190

3+ 17 = 20

Add them together.. = 210......i Think

(easy way out...look for easy numbers 2x 5 =10....and work from there

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 Post subject: Posted: Mon Nov 26, 2007 7:44 pm

Joined: Mon Jan 30, 2006 4:07 pm
Posts: 2660
5 x 2= 10

10 x 19 = 190

190 + 17 + 3 = 210

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 Post subject: Posted: Mon Nov 26, 2007 7:52 pm
Thank you, you make it look so easy (but we do have colds!!!)sniff.

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