Answer:

You could make 10 copies the statements:

' Ask the user for 10 numbers.
' Add them up, print the sum.
'
LET  SUM = 0                 ' Clear the sum
'
PRINT "Enter a number"       
INPUT NUMBER                 
LET   SUM = SUM + NUMBER    
'
  . . . . 9 more copies of the above group . . . .
'
END

But this would be too much work.

Good Place for a Loop

Better, put the statements into a loop body, and execute the loop 10 times. Here is the LOOPing part of the program:

' Ask the user for 10 numbers.
' Add them up, print the sum.
'
LET COUNT = 1
DO WHILE COUNT <= 10

  . . . . loop body goes here  .   . . . 

  LET COUNT = COUNT + 1
LOOP
'
END

QUESTION 12:

Here is the statement that starts SUM out at zero (like clearing a calculator before you use it):

LET SUM = 0

Here are the statements that get a number from the user and adds it to the sum:

PRINT "Enter a number"       
INPUT NUMBER                 
LET   SUM = SUM + NUMBER

Here is the statement that writes out the answer:

PRINT "The sum is", SUM

Mentally paste these statements into their correct locations in the above program.