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If you have bought the Problem Sums Formula sheets from me, please refer to them as I explain.

For those who want to get hold of Problem Sums Formula Sheet Page 1 and 2, here are 2 options.

(Self collection in Ang Mo Kio)
https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=NMPSXXQMBATB8

(Handling Fee by Registered Mail)
https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=3UUELSG8E5CEW