diff --git a/mondai.rb b/mondai.rb
index f2c727d..b1d4ddd 100755
--- a/mondai.rb
+++ b/mondai.rb
@@ -44,8 +44,9 @@
 # -*- coding: utf-8 -*-
 
 puts "問題!"
-kazuiti = srand(100)
-kazuni = srand(100)
+srand()
+kazuiti = rand(99) + 1
+kazuni = rand(99) + 1
 printf("%d*%d\n", kazuiti, kazuni)
 
 while true
diff --git a/mondai2.rb b/mondai2.rb
new file mode 100755
index 0000000..c9a3130
--- /dev/null
+++ b/mondai2.rb
@@ -0,0 +1,20 @@
+#!/usr/bin/env ruby
+# -*- coding: utf-8 -*-
+
+puts "問題!"
+srand()
+kazuiti = rand(99) + 1
+kazuni = rand(99) + 1
+printf ("%d*%d\n", kazuiti, kazuni)
+
+while true
+  print "答えを入力："
+  kotae = gets.chomp.to_i
+  if kotae == kazuiti*kazuni
+    puts "正解!!"
+    break
+  else
+    puts "不正解..."
+    break
+  end
+end