1 files changed, 31 insertions, 0 deletions
diff --git a/275/CH8/EX8.8.30b/Ch8_8_30b.sce b/275/CH8/EX8.8.30b/Ch8_8_30b.sce
new file mode 100755
index 000000000..73020d16a
--- /dev/null
+++ b/275/CH8/EX8.8.30b/Ch8_8_30b.sce
@@ -0,0 +1,31 @@
+clc
+clear
+disp("Example 8.30b")
+printf("\n")
+disp("perform the following decimal subtraction using 10s complements")
+disp("a)49-24    b)321-578")
+//given numbers
+a=49
+b=-24
+//should set to 100 if input is 2 digit number,1000 if 3digit number
+c=1000
+//add c with 2nd operand
+e=c+b
+N=a+e
+if(N>100)
+    if(N<199)
+    M=N-100
+    N=M
+end
+end
+if(N>1000)
+    if(N<1999)
+    M=N-1000
+    N=M
+end
+end
+    M=N
+if(-b>a)
+    M=-(999-M+1)
+end
+printf("result=%d",M)