44 − 35 =; 5 + 2 =; 72 − 65 =; 13 + 39 =; 53 − 1 =; 41 + 22 =; 93 − 58 =; 1 + 59 =; 58 − 42 =; 28 + 16 =; 95 − 14 =; 3 + 87 =; 59 − 46 =; 4 + 90 =; 37 − 16 =; 84 + 0 =; 76 − 57 =

44 − 35 = 9; 5 + 2 = 7; 72 − 65 = 7; 13 + 39 = 52; 53 − 1 = 52; 41 + 22 = 63; 93 − 58 = 35; 1 + 59 = 60; 58 − 42 = 16; 28 + 16 = 44; 95 − 14 = 81; 3 + 87 = 90; 59 − 46 = 13; 4 + 90 = 94; 37 − 16 = 21; 84 + 0 = 84; 76 − 57 = 19.