4 + 4 = 8

9 x 12 = 108
9 - 7 = 2
12 / 9 = 1.333
6 x 3 = 18
99 - 63 = 36
12 + 3 = 15
55 x 2 = 110
34 / 7 = 4.857
23 x 23 = 529
20 + 4 = 24
7 x 11 = 77
65 - 9 = 56
2 + 3 = 5
1 + 89 = 90
45 / 45 = 1
370 - 90 = 280
5 x 5 = 25
77 / 9 = 8.555
9 x 3 = 27
88 / 5 = 17.6
7 - 6 = 1
73 + 3 = 76
23 - 9 = 14