New Worksheet  | Home  | Help 
Pre Algebra
Answers Hide Show
Name: Date:
 

What number can be used for "?" to make the number sentence (or equation) valid.
5 + 7 = ?



? + 3 = 6



8 + ? = 17



6 + ? = 9



2 + ? = 7



6 + 5 = ?



? + 7 = 12



? + 1 = 7



? + 8 = 13



? + 8 = 15



9 + ? = 12



? + 6 = 11



  visit mathslice.com for free worksheets