4) 7 × 9 = 63 biscuiti → Raspunsul b
5) MMIX = 2 009 → Raspuns: c
6) 257 + 194 = 451 → Raspuns: b
7) 526 kg + ( 526 kg + 7 kg) = 526 kg + 533 kg = 559 kg
8) 78, 80, 83, 87, 92, 98, 105 → Raspuns: b
9) ( 351 - 51 ) : ( 24 × 5 ) = 300 : 100 = 3 → Raspuns: b
10) 730, 689, 413, 148
faina, zahar, lapte, unt → Raspuns: c)
11) fractia 7/31 → Raspuns: a
12) kilometrul → Raspuns: b