Răspuns:
Punctul A)
[1 + 2 × (6 + 6 : 3) - 5] : 6 =
= [1 + 2 × (6 + 2) - 5] : 6
= (1 + 2 × 8 - 5) : 6
= (1 + 16 - 5) : 6
= (17 - 5) : 6
= 12 : 6
= 2
Punctul B)
180 : 2 + (50 × 2 : 10 + 90) + 10 - 25 × 4 =
= 90 + (100 : 10 + 90) + 10 - 100
= 90 + (10 + 90) + 10 - 100
= 90 + 100 + 10 - 100
= 90 + 110 - 100
= 90 + 10
= 100