Respuesta :

Answer:

The numbers 1; 2; 3; 4 etc. are called the natural numbers. The natural numbers, 0 and the negative whole numbers together are called the integers. But to go from 45 from 20 you have to subtract 5
An Integer is a whole number that is a not a fraction ex. 1,2,3,4,5,6,7,8,9,0