80 − (24 − 6) = 80 − 18 = 62;
90 − (36 − 8) = 90 − 28 = 62;
48 + (13 + 7) = 48 + 20 = 68;
34 + (18 + 2) = 34 + 20 = 54;
89 − (64 − 4) = 89 − 60 = 29;
75 − (37 − 7) = 75 − 30 = 45.
Условие:
80 − (24 − 6)
90 − (36 − 8)
48 + (13 + 7)
34 + (18 + 2)
89 − (64 − 4)
75 − (37 − 7)
80 − (24 − 6) = 80 − 18 = 62;
90 − (36 − 8) = 90 − 28 = 62;
48 + (13 + 7) = 48 + 20 = 68;
34 + (18 + 2) = 34 + 20 = 54;
89 − (64 − 4) = 89 − 60 = 29;
75 − (37 − 7) = 75 − 30 = 45.