Subtract: 15 - 15

What is 15 - 15?
What is 15 minus 15?
Subtraction 16 17 18 19 20
16 16-16 = 0 17-16 = 1 18-16 = 2 19-16 = 3 20-16 = 4
17 16-17 = -1 17-17 = 0 18-17 = 1 19-17 = 2 20-17 = 3
18 16-18 = -2 17-18 = -1 18-18 = 0 19-18 = 1 20-18 = 2
19 16-19 = -3 17-19 = -2 18-19 = -1 19-19 = 0 20-19 = 1
20 16-20 = -4 17-20 = -3 18-20 = -2 19-20 = -1 20-20 = 0
Subtraction 15.1 15.2 15.3 15.4 15.5 15.6
15.1 15.1-15.1 = 0 15.2-15.1 = 0.1 15.3-15.1 = 0.2 15.4-15.1 = 0.3 15.5-15.1 = 0.4 15.6-15.1 = 0.5
15.2 15.1-15.2 = -0.1 15.2-15.2 = 0 15.3-15.2 = 0.1 15.4-15.2 = 0.2 15.5-15.2 = 0.3 15.6-15.2 = 0.4
15.3 15.1-15.3 = -0.2 15.2-15.3 = -0.1 15.3-15.3 = 0 15.4-15.3 = 0.1 15.5-15.3 = 0.2 15.6-15.3 = 0.3
15.4 15.1-15.4 = -0.3 15.2-15.4 = -0.2 15.3-15.4 = -0.1 15.4-15.4 = 0 15.5-15.4 = 0.1 15.6-15.4 = 0.2
15.5 15.1-15.5 = -0.4 15.2-15.5 = -0.3 15.3-15.5 = -0.2 15.4-15.5 = -0.1 15.5-15.5 = 0 15.6-15.5 = 0.1
15.6 15.1-15.6 = -0.5 15.2-15.6 = -0.4 15.3-15.6 = -0.3 15.4-15.6 = -0.2 15.5-15.6 = -0.1 15.6-15.6 = 0