diff --git a/education/software development/ECE1400/Chapter 3 Exercises.md b/education/software development/ECE1400/Chapter 3 Exercises.md
index db52940..963eed8 100644
--- a/education/software development/ECE1400/Chapter 3 Exercises.md	
+++ b/education/software development/ECE1400/Chapter 3 Exercises.md	
@@ -1,5 +1,8 @@
-# 1
+# 1.
 a. `86,1040`
 b. `3.02530e+01`
 c. `83.1620`
-d. `1e-06`
+d. `1e-06 `
+
+# 2.
+a. `printf`
\ No newline at end of file