Răspuns :
Suma numerelor naturale de două cifre cu ambele cifre pare:
22+22=44,
22+44=66,
22+66=88,
22+88=110,
44+44=88,
44+66=110,
44+88=132,
66+66=132,
66+88=154,
88+88=176,
22+22=44,
22+44=66,
22+66=88,
22+88=110,
44+44=88,
44+66=110,
44+88=132,
66+66=132,
66+88=154,
88+88=176,