ONE MINUTE TIMED DRILL - ADDING DOUBLE DIGITS - ELEVENS
    

   Add the two numbers to find the sum. 

   
11+20= 11+11= 15+11= 11+11= 13+11= 15+11=  20+11= (7
18+11= 12+11= 11+10= 14+11=  16+11= 17+11=  13+11= (14
17+11=  11+10= 19+11= 16+11= 11+10=  11+19= 13+11= (21
16+11=   12+11=  11+11= 13+11= 11+11= 15+11=    16+11= (28
16+11=   20+11= 11+10= 18+11= 15+11= 19+11= 11+11= (35
11+19=  15+11= 13+11= 11+17= 11+12= 11+14= 11+10= (42
13+11=  18+11= 16+11= 19+11= 11+12= 17+11= 11+10= (49
13+11=  11+11= 11+11= 16+11= 18+11= 11+12= 16+11= (56
19+11=  11+17= 16+11= 15+11= 11+16= 11+16= 18+11= (63
18+11= 11+10= 19+11= 11+11= 11+10= 18+11= 16+11=  (70
12+11=  11+12= 16+11= 18+11= 11+10= 11+11= 19+11= (77
11+10=  11+12= 11+11= 11+11= 13+11= 19+11= 11+12= (84
16+11=  11+11= 11+12= 11+10= 15+11= 15+11= 19+11= (91
18+11= 11+12= 6+11= 11+12= 15+11= 11+10= 13+11= (98
16+11=  11+12= 19+11= 19+11= 11+10= 11+11= 11+12= (105
(15) (30)  (45) (60) (75) (90)  (105)
  
  

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