Maths Workbook Wk 5

This Is Week Fives Maths Workbook We Had To Find Out What The Missing Numbers Were .
I Found This Really Easy I Got it Done Quite Well . 
If You Would Like To Have A Try I Will Put Some Underneath This .
1) _ - 31 = 33 
2) 7 x _ = 42
3) 103 + _ = 172
Have A Try And Comment What You Got .