Maths ...Question

307x18=5506
458x12=5496
308x17=5236
453x12=5436
351x16=5616
302x18=5436
452x13=5876
404x14=5656
304x19=5776
456x11=5016
356x16=5696
506x11=5566
359x14=5026
409x14=5726
361x16=5776
412x13=5356
312x18=5616

2009-06-17 22:46:14 補充：
463x12=5556
364x14=5096
414x14=5796
264x19=5016
314x19=5966
466x11=5126
516x11=5676

2009-06-17 22:51:31 補充：
316x16=5056
366x16=5856
317x18=5706
418x12=5016
468x12=5616
318x17=5406
369x14=5166

2009-06-17 22:58:30 補充：
419x14=5866
321x16=5136
371x16=5936
422x13=5486
322x18=5796
423x12=5076
473x12=5676
374x14=5236
424x14=5936
274x19=5206
476x11=5236
526x11=5786

2009-06-17 23:13:48 補充：
326x16=5216
327x18=5886
428x12=5136
478x12=5736
328x17=5576
379x14=5306
331x16=5296
432x13=5616
332x18=5976

2009-06-17 23:20:37 補充：
433x12=5196
483x12=5796
384x14=5376
284x19=5396
486x11=5346
536x11=5896
336x16=5376
287x18=5166
438x12=5256
488x12=5856
338x17=5746
389x14=5446

2009-06-17 23:24:24 補充：
341x16=5456
392x13=5096
442x13=5746
292x18=5256
443x12=5316
493x12=5916
394x14=5516
294x19=5586
496x11=5456

2009-06-17 23:27:58 補充：
346x16=5536
297x18=5345
448x12=5376
498x12=5976
298x17=5066
348x17=5916
399x14=5586

2009-06-18 09:39:36 補充：
What's your another question?

Actually, where does the question come from?

Maths exe book?