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2014-11-16T20:25:08+02:00
A+b=552
a:b=54.2
a=54b+2

54b+2+b=552
55b=552-2
55b=550
b=550:55
b=10

a=54*10+2
a=540+2
a=542
2014-11-16T20:48:32+02:00
552:2=276
276-5=271
271×2=542
542+10+552
10:2=5
271:5=54,2
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