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crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Clincy Cheung

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+[* black] Once you have inserted all the batteries, the next step is to put the keypad back onto the calculator.
+[* black] Take the keypad face up, and place it against the edge (the edge closer to the screen) of the keypad slot, and click the end of the keypad into the rest of the slot.
+[* black] Take this chance to also make sure that the keypad is connected correctly, as this could prevent the calculator from turning on.