Июль 2013...................................................................................................................................................................................................................................
28/4 36/4 40/4
10/5 15/5 40/5
1 82-4=82-2-2=80-2=78
54-7=54-4-3=50-<span>3=47
2 </span>84-9=75(ящ)
ответ: 75 ящиков с грушами<span>
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