Add: 1 + 3

What is 1 + 3?
What is 1 plus 3?
Addition 2 3 4 5 6
4 2+4 = 6 3+4 = 7 4+4 = 8 5+4 = 9 6+4 = 10
5 2+5 = 7 3+5 = 8 4+5 = 9 5+5 = 10 6+5 = 11
6 2+6 = 8 3+6 = 9 4+6 = 10 5+6 = 11 6+6 = 12
7 2+7 = 9 3+7 = 10 4+7 = 11 5+7 = 12 6+7 = 13
8 2+8 = 10 3+8 = 11 4+8 = 12 5+8 = 13 6+8 = 14
Addition 1.1 1.2 1.3 1.4 1.5
3.1 1.1+3.1 = 4.2 1.2+3.1 = 4.3 1.3+3.1 = 4.4 1.4+3.1 = 4.5 1.5+3.1 = 4.6
3.2 1.1+3.2 = 4.3 1.2+3.2 = 4.4 1.3+3.2 = 4.5 1.4+3.2 = 4.6 1.5+3.2 = 4.7
3.3 1.1+3.3 = 4.4 1.2+3.3 = 4.5 1.3+3.3 = 4.6 1.4+3.3 = 4.7 1.5+3.3 = 4.8
3.4 1.1+3.4 = 4.5 1.2+3.4 = 4.6 1.3+3.4 = 4.7 1.4+3.4 = 4.8 1.5+3.4 = 4.9
3.5 1.1+3.5 = 4.6 1.2+3.5 = 4.7 1.3+3.5 = 4.8 1.4+3.5 = 4.9 1.5+3.5 = 5