Subtract: 12 - 13

What is 12 - 13?
What is 12 minus 13?
Subtraction 13 14 15 16 17
14 13-14 = -1 14-14 = 0 15-14 = 1 16-14 = 2 17-14 = 3
15 13-15 = -2 14-15 = -1 15-15 = 0 16-15 = 1 17-15 = 2
16 13-16 = -3 14-16 = -2 15-16 = -1 16-16 = 0 17-16 = 1
17 13-17 = -4 14-17 = -3 15-17 = -2 16-17 = -1 17-17 = 0
18 13-18 = -5 14-18 = -4 15-18 = -3 16-18 = -2 17-18 = -1
Subtraction 12.1 12.2 12.3 12.4 12.5 12.6
13.1 12.1-13.1 = -1 12.2-13.1 = -0.9 12.3-13.1 = -0.8 12.4-13.1 = -0.7 12.5-13.1 = -0.6 12.6-13.1 = -0.5
13.2 12.1-13.2 = -1.1 12.2-13.2 = -1 12.3-13.2 = -0.9 12.4-13.2 = -0.8 12.5-13.2 = -0.7 12.6-13.2 = -0.6
13.3 12.1-13.3 = -1.2 12.2-13.3 = -1.1 12.3-13.3 = -1 12.4-13.3 = -0.9 12.5-13.3 = -0.8 12.6-13.3 = -0.7
13.4 12.1-13.4 = -1.3 12.2-13.4 = -1.2 12.3-13.4 = -1.1 12.4-13.4 = -1 12.5-13.4 = -0.9 12.6-13.4 = -0.8
13.5 12.1-13.5 = -1.4 12.2-13.5 = -1.3 12.3-13.5 = -1.2 12.4-13.5 = -1.1 12.5-13.5 = -1 12.6-13.5 = -0.9
13.6 12.1-13.6 = -1.5 12.2-13.6 = -1.4 12.3-13.6 = -1.3 12.4-13.6 = -1.2 12.5-13.6 = -1.1 12.6-13.6 = -1