add Module_2_1.rb

a42a22d8 · The Vien Pham · bd3ee599 · a42a22d8
Commit a42a22d8 authored Dec 03, 2015 by The Vien Pham
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Module_2_1.rb
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--- a/Module_2_1.rb
+++ b/Module_2_1.rb
+m = "Jimmy".reverse
+puts m
+cong = 2 + 6
+puts cong
+nhan = 2 * 3
+puts nhan
+chia = 6 / 4
+puts chia
+tru = 2 - 1
+puts tru
+len = "Jimmy".length
+puts len 
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