The answer depends on the units used for 1.3: 1.3 millimetres, 1.3 miles, 1.3 feet? Since you have not bothered to share that crucial bit of information, I cannot provide a more useful answer.
12.67 rounded to the nearest ones is 13
13.0
To the nearest integer, 13 To the nearest ten, 10
It is: 13
13.12 rounded to the nearest dollar is $13.
10
10
12.67 rounded to the nearest ones is 13
13
12.6 rounded to the nearest 10 is 10.
12.8 rounded to the nearest whole number is 13
13.2 rounded to the nearest whole number is 13
13.26 rounded to the nearest whole number = 13
12.515 rounded to the nearest whole number is 13
It is then 13 when rounded to the nearest whole number
13.0
13