diff --git a/Gatya.rb b/Gatya.rb
new file mode 100755
index 0000000..0cd6f13
--- /dev/null
+++ b/Gatya.rb
@@ -0,0 +1,11 @@
+#!/usr/bin/env ruby
+# -*- coding: utf-8 -*-
+
+def gatya
+  unn = ["SSR","SR","SR","R","R","R","R","R","R","R","R","N","N","N","N","N","N","N","N","N","N","N","N","N","N"]
+  unn[rand(unn.length)]
+end
+
+puts"ガチャを引きますよー!"
+sleep(1)
+printf("%sですね!\n",gatya)
diff --git a/benkyou.rb b/benkyou.rb
index 5dbbb49..c57758e 100755
--- a/benkyou.rb
+++ b/benkyou.rb
@@ -8,48 +8,69 @@
 puts"4.45n×3n=?"
 puts"x= -12 、y= 4のとき、4xー8yはいくつになるでしょう?"
 
+count = 0
+tyousen = 0
 while true
   while true
-  puts"1の答えを入力:"
-  kaitou = gets.chomp.to_i
+    puts"1の答えを入力:"
+    tyousen += 1
+  kaitou = gets.chomp
   if kaitou == "9x"
     puts"正解!"
+    break
   else
-     puts"不正解...."
+    puts"不正解...."
+    count += 1
       redo
     end
   end
 
     while true
-    puts"2の答えを入力:"
-    kaitou = gets.chomp.to_i
+      puts"2の答えを入力:"
+      tyousen += 1
+    kaitou = gets.chomp
     if kaitou == "7y"
-    puts"正解!"
+      puts"正解!"
+      break
     else
       puts"不正解...."
+      count += 1
       redo
      end
     end
 
 while true
   puts"3の答えを入力:"
-  kaitou = gets.chomp.to_i
+  tyousen += 1
+  kaitou = gets.chomp
   if kaitou == "-20b"
     puts"正解!"
+    break
   else
     puts"不正解...."
+    count += 1
     redo
   end
 end
 
 while true
   puts"4の答えを入力:"
-  kaitou = gets.chomp.to_i
+  tyousen += 1
+  kaitou = gets.chomp
   if kaitou == "135x"
     puts"正解!"
+    break
   else
     puts"不正解...."
+    count += 1
     redo
   end
 end
+break
 end  
+
+p count
+p tyousen
+printf("%f\n",count.to_f/tyousen.to_f)
+
+
diff --git a/keisan b/keisan
new file mode 100755
index 0000000..c289b31
--- /dev/null
+++ b/keisan
@@ -0,0 +1,9 @@
+#!/usr/bin/env ruby
+# -*- coding: utf-8
+
+x = rand(10)
+y = rand(10)
+
+p x
+p y
+
diff --git a/keisan.rb2 b/keisan.rb2
new file mode 100755
index 0000000..43d5641
--- /dev/null
+++ b/keisan.rb2
@@ -0,0 +1,8 @@
+#!/usr/bin/env ruby
+# -*- coding: utf-8
+
+x = rand(10)
+y = rand(10)
+
+p x
+p y
diff --git a/keisan2.rb b/keisan2.rb
new file mode 100755
index 0000000..da420b4
--- /dev/null
+++ b/keisan2.rb
@@ -0,0 +1,19 @@
+#!/usr/bin/env ruby
+# -*- coding: utf-8
+
+x = rand(10)
+y = rand(10)
+
+p x
+p y
+
+printf("yは%dで、xは%dです。足したらいくつになりますか?\n",y,x)
+
+kotae = gets.to_i
+if kotae == (x+y)
+  puts"せいかーい!"
+else
+  puts"不正解...."
+end
+
+ 
diff --git a/rizumu.rb b/rizumu.rb
new file mode 100755
index 0000000..7a6d8a2
--- /dev/null
+++ b/rizumu.rb
@@ -0,0 +1,33 @@
+#!/usr/bin/env ruby
+# -*- coding: utf-8 -*-
+
+puts"遊びますか?"
+puts"STARTと入力:"
+asobu = gets.chomp
+
+while true
+  if asobu == "START"
+     srand()
+rizumu = rand(10) +1
+printf("%d秒ぴったりに叩いて下さい\n",rizumu)
+puts"すたーと"
+hajime = Time.now.to_f
+stop = gets.chomp
+owari = Time.now.to_f
+time = owari - hajime
+printf("タイムは%f秒です!\n",time)
+
+i = rizumu - time
+if i.abs >2
+  puts"あってないですね。感覚おかしいです。"
+elsif i.abs <=2 || i.abs >0
+  puts"めっちゃ惜しい!"
+elsif i.abs == 0
+  puts"ぴったし!!すごすぎ!あなたは天才です。リズム当ての神です"
+end
+
+sleep(5)
+  else 
+    puts"?"
+  end
+end