Ответ:
80 − 53 = 27; 84 − 47 = 37; 52 − 41 = 11; 30 : 3 = 10; 56 + 24 = 80; 5 · 5 = 25; 2 · 9 = 18; 6 · 7 = 42; 16 : 4 = 4; 37 + 35 = 72; 77 − 6 = 71; 65 + 27 = 92; 84 − 33 = 51; 1 + 56 = 57; 100 − 1 = 99.
80 − 53 = 27; 84 − 47 = 37; 52 − 41 = 11; 30 : 3 = 10; 56 + 24 = 80; 5 · 5 = 25; 2 · 9 = 18; 6 · 7 = 42; 16 : 4 = 4; 37 + 35 = 72; 77 − 6 = 71; 65 + 27 = 92; 84 − 33 = 51; 1 + 56 = 57; 100 − 1 = 99.