1. "(3,600/36)*36=?"
  "3,660"
  "36,000"
  "3,600"
  360
  "36,600"

2. 899*217=?
  "194,269"
  "195,236"
  "194,126"
  "195,248"
  "195,083"

3. (36*36)+36=?
  "3,211"
  "1,123"
  "1,223"
  "1,332"
  "2,131"

4. " 11,111,111*11=? "
  "12,222,221"
  "122,222,221"
  "122,222,222"
  "12,222,222"
  "122,222,220"

5. (231*20)+231=?
  "4,851"
  "1,456"
  "4,594"
  "1,543"
  "4,441"

6. "36*1,237=?"
  " 44,514 "
  " 44,145 "
  " 15,514.00 "
  " 45,415 "
  "45,362"

7. (21*7)/21=?
  8
  20
  21
  22
  7

8. (2000/20)*10=?
  "1,000"
  110
  100
  "10,000"
  "1,001"

9. "(2,001+706)*19=?"
  "51,433"
  "54,397"
  "51,413"
  "50,697"
  "55,214"

10. (999-99)+99=?
  999
  99
  990
  "1,000"
  948