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Cat fac urmatoarele:
2X31=
2X19=
4X35=
4X15=
5X47=
5X43=
7X26=
7X24=.
4X62=
4X38=
6X38=
6X13=
6X37=


Răspuns :

2X31= 62
2X19= 38
4X35=140
4X15=60
5X47=235
5X43=215
7X26=182
7X24=168
4X62=248
4X38=152
6X38=228
6X13=78
6X37=222