ONE MINUTE TIMED DRILL - SUBTRACTING 9s

Subtract the two numbers to find the answer.  

    
18 - 9= 13 - 9= 9 - 9= 17 - 9= 14 - 9= 10 - 9= 19 - 9= (7
 
16 - 9= 9 - 9= 13 - 9= 10 - 9= 17 - 9= 16 - 9= 18 - 9= (14
12 - 9= 15 - 9= 10 - 9= 12 - 9= 13 - 9= 12 - 9= 9 - 9= (21
11 - 9=  9 - 9= 13 - 9= 14 - 9= 10 - 9= 12 - 9= 15 - 9= (28
13 - 9= 13 - 9= 11 - 9= 9 - 9= 16 - 9= 13 - 9= 10 - 9= (35
9 - 9= 12 - 9= 18 - 9= 17 - 9= 9 - 9= 11 - 9= 15 - 9= (42
16 - 9= 9 - 9= 16 - 9= 12 - 9= 13 - 9= 9 - 9= 10 - 9= (49
19 - 9= 12 - 9= 9 - 9= 14 - 9= 16 - 9= 13 - 9= 9 - 9= (56
 
15 - 9= 10 - 9= 10 - 9= 9 - 9= 10 - 9= 12 - 9= 18 - 9= (63
9 - 9= 14 - 9= 13 - 9= 16 - 9= 9 - 9= 9 - 9= 19 - 9= (70
9 - 9=  11 - 9= 13 - 9= 9 - 9= 11 - 9= 9 - 9= 10 - 9= (77
12 - 9= 9 - 9= 16 - 9= 18 - 9= 12 - 9= 10 - 9= 13 - 9= (84
15 - 9= 18 - 9= 9 - 9= 19 - 9= 12 - 9= 14 - 9= 11 - 9= (91
17 - 9=    9 - 9= 10 - 9= 12 - 9= 15 - 9= 18 - 9= 16 - 9= (98
18 - 9= 9 - 9= 13 - 9= 17 - 9= 9 - 9= 10 - 9= 14 - 9= (105
 
(15) (30)  (45) (60) (75) (90)  (105)
  

Copyrighted 1992, 2003 - ExtremeIntellect.com - Use and copy freely for personal or educational use.  No business use or resale allowed.