Question
Find the missing digits.
  1. R
  2. S
 
      7 9 8 R
-        1 S 5
       7 8 2 1
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Find the missing digits.
  1. R
  2. S
 
      7 9 8 R
-        1 S 5
       7 8 2 1