(1) Now add B and A in a space like this
B +A = M N
(2) Now please the sum of M and N between MN
B +A = M (M+N)N
Add 19 +91 = 9+1= 1 0
= 1(1+0)0
= 110
Add 28 +82 = 8+2= 1 0
= 1(1+0)0
= 110
Add 38 +83 = 8+3= 1 1
= 1(1+1)1
= 121
Add 19 +91 = 9+1= 1 0
= 1(1+0)0
= 110
Add 39 +93 = 9+3= 1 2
= 1(1+2)2
= 132
Add 56 +65 = 6+5= 1 1
= 1(1+1)1
= 121
Add 58 +85 = 8+5= 1 3
= 1(1+3)3
= 143
Add 12 +21 = 2+1= 0 3
= 0(0+3)3
= 033
Add 13 +31 = 3+1= 0 4
= 0(0+4)4
= 044
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