Răspuns :
mai mari = adunare (+)
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5+10=15
5+6=11
5+21=26
5+33=38
5+8=13
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10+5=15
6+5=11
21+5=26
33+5=38
8+5=13
5+10=15
5+6=11
5+21=26
5+33=38
5+8=13
10+5=15
6+5=11
21+5=26
33+5=38
8+5=13