1) 1+1= a) =2 b) = 1 c) =0 2) 2+3= a) = 4 b) = 5 c) = 3 3) 2+1= a) = 2 b) = 3 c) = 4 4) 4-1 = a) = 4 b) = 3 c) = 5 5) 5-0 = a) = 5 b) = 6 c) = 0 6) 2-1= a) = 3 b) = 4 c) = 1 7) 3-2= a) = 1 b) = 5 c) = 2 8) 4+1= a) = 3 b) = 5 c) = 2 9) 1+4 = a) = 2 b) = 5 c) = 3 10) 5-5= a) = 10 b) = 0 c) = 5 11) 0 - 0= a) = 10 b) = 0 c) = 2 12) 2+2= a) = 3 b) = 0 c) = 4 13) 5-1= a) = 6 b) = 3 c) = 4 14) 3-1= a) = 1 b) = 4 c) = 2 15) 2-1= a) = 3 b) = 4 c) = 1 16) 0-0 a) = 1 b) = 10 c) = 0 17) 1+3= a) = 0 b) = 4 c) = 3

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