ONE MINUTE TIMED DRILL - ADDING 3s

  

Add the two numbers to find the sum.  

    
1+3= 3+3=  8+3= 3+3= 3+3=   5+3= 0+3=  (7
 
8+3= 1+3= 8+3=   3+3= 6+3= 5+3= 2+3= (14
 
1+3= 3+3= 1+3= 10+3= 3+5= 3+2= 3+3= (21
 
6+3= 9+3= 3+3= 3+3= 10+3= 0+3= 5+3= (28
 
0+3= 3+3= 10+3= 6+3= 3+3=  5+3=  3+3= (35
 
6+3= 3+3= 5+3= 10+3= 3+3= 0+3= 3+3= (42
 
3+3= 5+3= 1+3= 3+4= 3+7= 3+3= 3+2= (49
 
3+4= 6+3= 3+7= 8+3=  9+3= 3+3=  1+3= (56
 
9+3= 6+3=  5+6= 3+3= 5+3= 3+6= 8+3= (63
 
8+3= 0+3=  3+3= 10+3= 10+3= 8+3= 6+3= (70
 
0+3= 6+3= 1+3= 3+3= 8+3= 10+3= 9+3= (77
 
0+3= 3+3= 0+3= 7+3= 1+3=   3+3= 9+3= (84
 
6+3= 10+3= 5+3= 4+3= 0+3=  5+3= 9+3= (91
 
8+3= 10+3= 5+3= 10+3= 10+3=  3+3= 0+3= (98
 
6+3= 9+3= 1+3= 3+3= 9+3= 3+3= 0+3= (105
 
(15) (30)  (45) (60) (75) (90)  (105)
  
  

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