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Diagrammatically:<br />
2 x 8 = 16<br />
32 x 38 = 12 16<br />
3 x 4 = 12<br />
� And 81 x 89 = 7209<br />
www.classtopper.com<br />
We put 09 since we need two figures as in all the<br />
other examples.<br />
Practise some:<br />
1) 43 x 47 = 2) 24 x 26 =<br />
3) 62 x 68 = 4) 17 x 13 =<br />
5) 59 x 51 = 6) 77 x 73 =<br />
23<br />
The mathematician<br />
does not study pure<br />
mathematics because<br />
it is useful; he studies<br />
it because he<br />
delights in it and he<br />
delights in it because<br />
it is beautiful.<br />
POINCARE
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