What would happen if the user typed in -10 for the number of times to execute the loop?

Answer:

The loop would execute zero times.

Adding up two Numbers

Say that you wanted a program that asks the user for two numbers, adds them up, and prints the answer. Here is the program:

' Ask the user for two numbers
' Add them up, print the sum.
'
PRINT "What is the first number"
INPUT NUMBER1
'
PRINT "What is the second number"
INPUT NUMBER2
'
LET   SUM = NUMBER1 + NUMBER2
PRINT "The total is:", SUM
'
END

Here is an example run of the program:

What is the first number
? 15.2
What is the second number
? 2.5
The total is:   17.7

QUESTION 8:

Think about how you would write a program to add up 3 numbers. (Don't write the program unless you want to.)