diff --git a/kibun.rb b/kibun.rb
new file mode 100644
index 0000000..d1a9b8b
--- /dev/null
+++ b/kibun.rb
@@ -0,0 +1,8 @@
+#!/usr/bin/env ruby
+# -*- coding:utf-8 -*-
+
+
+
+for i in kibun
+  printf("今日は%sをしたい気分だ。\n", kibun)
+end
diff --git a/koyakusu.rb b/koyakusu.rb
new file mode 100644
index 0000000..eed570e
--- /dev/null
+++ b/koyakusu.rb
@@ -0,0 +1,47 @@
+#!/usr/bin/env ruby
+#-*- coding:utf-8 -*-
+
+i = 1
+a = 1
+yakusu1=[]
+yakusu2=[]
+koyakusu = []
+
+puts"最大公約数を出します"
+puts"1つ目の数字を入力してください"
+suzi1 = gets.to_i
+puts"2つ目の数字を入力してください"
+suzi2 = gets.to_i
+
+while i <= suzi1
+  x = suzi1 % i
+  if x == 0
+    yakusu1<< i
+  end
+  i +=1
+end
+
+while a <= suzi2
+  y = suzi2 % a
+  if y == 0
+    yakusu2 << a
+  end
+  a +=1
+end
+
+i = 0
+
+while i != yakusu1.length
+  yakusu2.each do |n|
+    if yakusu1[i] == n
+      koyakusu << n
+    end
+  end
+  i +=1
+end
+
+if koyakusu.reverse[0] != nil
+  printf("%dと%dの最大公約数は%dです\n",suzi1,suzi2,koyakusu.reverse[0])
+else
+  printf("%dと%dに公約数はありません\n",suzi1,suzi2)
+end
diff --git a/koyakusu_fix.rb b/koyakusu_fix.rb
new file mode 100644
index 0000000..84892fe
--- /dev/null
+++ b/koyakusu_fix.rb
@@ -0,0 +1,45 @@
+#! /usr/bin/env ruby
+#-*- coding:utf-8 -*-
+
+def yakusu(x)
+  i = 1
+  yaku =[]
+  while i <= x
+    y = x % i
+    if y == 0
+      yaku << i
+    end
+    i += 1
+  end
+  return yaku
+end
+
+def koyaku(x,y)
+  a = 0
+  koyakusu = []
+  while a != x.length
+    y.each do |n|
+    if x[a] == n
+      koyakusu << n
+    end
+  end
+  a += 1
+  end
+  return koyakusu
+end
+
+puts"最大公約数を出します"
+puts"1つ目の数字を入力してください"
+suzi1 = gets.to_i
+puts"2つ目の数字を入力してください"
+suzi2 = gets.to_i
+
+yakusu1 = yakusu(suzi1)
+yakusu2 = yakusu(suzi2)
+koyakusu = koyaku(yakusu1,yakusu2)
+
+if koyakusu.reverse[0] != nil
+   printf("%dと%dの最大公約数は%dです\n",suzi1,suzi2,koyakusu.reverse[0])
+else
+  printf("%dと%dに公約数はありません\n",suzi1,suzi2)
+end
diff --git a/kudamono.rb b/kudamono.rb
new file mode 100644
index 0000000..b510ac9
--- /dev/null
+++ b/kudamono.rb
@@ -0,0 +1,9 @@
+#!/usr/bin/env ruby
+# -*- coding: utf-8 -*-
+
+kudamono = ["りんご", "みかん", "バナナ"]
+nedan = [130, 80, 100]
+
+printf("%sの値段は%d円です。\n", kudamono[0], nedan[0])
+printf("%sの値段は%d円です。\n", kudamono[1], nedan[1])
+printf("%sの値段は%d円です。\n", kudamono[2], nedan[2])
diff --git a/kyoka.rb b/kyoka.rb
new file mode 100644
index 0000000..beeeb94
--- /dev/null
+++ b/kyoka.rb
@@ -0,0 +1,16 @@
+#!/usr/bin/env ruby
+# -*- coding: utf-8 -*-
+
+kyoka = []
+
+kyoka[0] = "国語"
+kyoka[1] = "数学"
+kyoka[2] = "社会"
+kyoka[3] = "理科"
+kyoka[4] = "英語"
+
+printf("一時間目は%sです。\n", kyoka[0])
+printf("二時間目は%sです。\n", kyoka[1])
+printf("三時間目は%sです。\n", kyoka[2])
+printf("四時間目は%sです。\n", kyoka[3])
+printf("五時間目は%sです。\n", kyoka[4])
diff --git a/tasizan.rb b/tasizan.rb
new file mode 100644
index 0000000..a5b0156
--- /dev/null
+++ b/tasizan.rb
@@ -0,0 +1,57 @@
+#!/uar/bin/env ruby
+# -*- coding: utf-8 -*-
+while true
+
+print"かけ算、割り算、足し算、引き算のうちどれかを選んでね!\n"
+puts"1.かけ算"
+puts"2.割り算"
+puts"3.足し算"
+puts"4.引き算"
+puts"5.終わり"  
+
+
+  print"やりたい物のすうじをいれてね!を入れてね\n"
+  go=gets.chomp.to_i
+
+  if go==1
+    print"掛けられるを入力してね。\n"
+    k=gets.to_i
+    print"掛ける数を入力してね。\n"
+    kake=gets.to_i
+    answer=k*kake
+    printf("答えは%fだよ!\n",answer)
+    redo
+
+  elsif go==2
+    print"割られるを入力してね!\n"
+    w=gets.to_i
+    print"わるかずをいれてね!"
+    wari=gets.to_i
+    kota=w/wari
+    printf("答えは%fだよ!\n",kota)
+    redo
+    
+  elsif go==3
+    print"足される数入力してね!\n"
+    t=gets.to_i
+    print"足す数を入れて\n"
+    tasu=gets.to_i
+    ko=t+tasu
+    printf("答えは%fだよ!\n",ko)
+    redo
+
+  elsif go==4
+    print"引かれるを入力してね!\n"
+    h=gets.to_i
+    print"引く数を入れて\n"
+    hiku=gets.to_i
+    k=h-hiku
+    printf("答えは%fだよ!\n",k)
+    redo
+
+ elsif go==5
+    break
+
+  end
+end
+