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diff --git a/2522/CH10/EX10.2/exm10_2.sce b/2522/CH10/EX10.2/exm10_2.sce
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+// page no 321
+// example no 10.2
+// ADDITION OF PACKED BCD NUMBERS
+clc;
+a=77;
+b=48;
+x=modulo(a,10);
+y=modulo(b,10);
+z=x+y;
+if z>9 then
+    f=z+6;
+   
+    printf('After addition BCD1 is: ')
+    disp(dec2bin(f));
+    printf('MSB of this sequence is the carry generated after addition. \n \n')
+else
+    printf('After addition BCD1 is: ')
+    disp(z);
+end
+x=a/10;
+x=floor(x);
+y=b/10;
+y=floor(y);
+z=x+y;
+if z>9 then
+    f=z+6;
+    f=f+1;  // this 1 is the carry of BCD1.
+    printf('After addition BCD2 is: ')
+    disp(dec2bin(f));
+    printf('MSB of this sequence is the carry generated after addition.')
+else
+    printf('After addition BCD1 is: ')
+    disp(z);
+end
+printf('\n \n BCD1 :  0101 \n \n');
+printf('BCD2:  0010')