000 00288nam a2200121Ia 4500
008 180626s9999 xx 000 0 und d
082 _a512.92 F648f 1995
245 0 _aFlip fun numbers
260 _aLondon
260 _bNew Burlington Books
260 _cc1995
650 _aI can subtract
999 _c47830
_d47830