Answer:

Here is the program, with comments in terms of the range of integers printed:

' Loop with a loop condition
'
LET NUM   = 25      'First Value
'
DO WHILE NUM <= 30  'next two statements execute if NUM is less than or equal to 30
  PRINT NUM            
  LET NUM = NUM + 1 'increase NUM by one
LOOP 

END

Negative Values

The computer does not care what value you start with. You can use a negative value to start, and increase it until it reaches a positive value. Here is a program that does that:

' Loop with a loop condition
'
LET NUM   = -3      'First Value

DO WHILE NUM <= 2   'next two statements execute if NUM is less than or equal to 2
  PRINT NUM            
  LET NUM = NUM + 1 'increase NUM by one
LOOP 

END

QUESTION 20:

What will this new program print on the monitor screen?