{"id":472,"date":"2026-06-23T14:24:46","date_gmt":"2026-06-23T05:24:46","guid":{"rendered":"https:\/\/www.risu-japan.com\/drill\/?p=472"},"modified":"2026-06-23T14:24:46","modified_gmt":"2026-06-23T05:24:46","slug":"time-am-pm-24hours","status":"publish","type":"drill","link":"https:\/\/www.risu-japan.com\/drill\/grade2\/time-and-duration\/time-am-pm-24hours\/","title":{"rendered":"\u5348\u524d\u30fb\u5348\u5f8c\u30681\u65e5\u306e\u6642\u9593\uff0824\u6642\u9593\u5236\uff09"},"content":{"rendered":"<p><!-- body-start --><\/p>\n<h2>\u5348\u524d\u30fb\u5348\u5f8c\u3068 1\u65e5\u306e\u6642\u9593\u3068\u306f<\/h2>\n<p>1\u65e5\u306f24\u6642\u9593\u3067\u3042\u308a\u3001\u6642\u8a08\u306e\u77ed\u3044\u91dd\uff08\u6642\u91dd\uff09\u304c1\u65e5\u306b2\u5468\u3059\u308b\u3053\u3068\u3092\u5b66\u3073\u307e\u3059\u3002\u591c\u4e2d\u306e12\u6642\u304b\u3089\u304a\u663c\u306e12\u6642\u307e\u3067\u3092\u300c\u5348\u524d\uff08\u3054\u305c\u3093\uff09\u300d\u3001\u304a\u663c\u306e12\u6642\u304b\u3089\u591c\u4e2d\u306e12\u6642\u307e\u3067\u3092\u300c\u5348\u5f8c\uff08\u3054\u3054\uff09\u300d\u3068\u547c\u3076\u3053\u3068\u3092\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002\u307e\u305f\u3001\u5348\u5f8c1\u6642\u3092\u300c13\u6642\u300d\u3001\u5348\u5f8c2\u6642\u3092\u300c14\u6642\u300d\u306e\u3088\u3046\u306b\u300124\u6642\u9593\u5236\u3067\u8868\u3059\u65b9\u6cd5\uff08\u6642\u523b\u306e\u8a00\u3044\u63db\u3048\uff09\u3082\u7df4\u7fd2\u3057\u307e\u3059\u3002<\/p>\n<h2>\u6642\u523b\u306e\u30eb\u30fc\u30eb<\/h2>\n<h3>1. 1\u65e5\u306f24\u6642\u9593<\/h3>\n<p>1\u65e5\u306f <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>24<\/mn><\/math><\/span> \u6642\u9593\u3067\u3059\u3002\uff08\u6642\u8a08\u306e\u91dd\u304c2\u56de\u308a\u3057\u307e\u3059\uff09<\/p>\n<h3>2. \u5348\u524d\u3068\u5348\u5f8c<\/h3>\n<p>\u591c\u306e12\u6642\u304b\u3089\u3001\u304a\u663c\u306e12\u6642\u307e\u3067\u304c\u300c\u5348\u524d\u300d\u3067\u3059\uff0812\u6642\u9593\uff09\u3002\u304a\u663c\u306e12\u6642\u304b\u3089\u3001\u591c\u306e12\u6642\u307e\u3067\u304c\u300c\u5348\u5f8c\u300d\u3067\u3059\uff0812\u6642\u9593\uff09\u3002<\/p>\n<h3>3. \u5348\u5f8c\u306e\u6642\u523b \u2192 24\u6642\u9593\u5236\u306b\u76f4\u3059<\/h3>\n<p>\u5348\u5f8c\u306e\u6642\u523b\u309224\u6642\u9593\u5236\u306b\u3059\u308b\u306b\u306f\u3001\u300c\u5348\u5f8c\u306e\u6642\u523b <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mo>+<\/mo><mn>12<\/mn><\/math><\/span>\u300d\u3092\u3057\u307e\u3059\u3002\uff08\u4f8b\uff1a\u5348\u5f8c3\u6642 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mo>\u2192<\/mo><\/math><\/span> <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>3<\/mn><mo>+<\/mo><mn>12<\/mn><mo>=<\/mo><mn>15<\/mn><\/math><\/span> \u6642\uff09<\/p>\n<h3>4. 24\u6642\u9593\u5236 \u2192 \u5348\u5f8c\u306e\u6642\u523b\u306b\u76f4\u3059<\/h3>\n<p>24\u6642\u9593\u5236\u306e\u6642\u523b\u3092\u5348\u5f8c\u306b\u76f4\u3059\u306b\u306f\u3001\u300c24\u6642\u9593\u5236\u306e\u6642\u523b <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mo>&#8211;<\/mo><mn>12<\/mn><\/math><\/span>\u300d\u3092\u3057\u307e\u3059\u3002\uff08\u4f8b\uff1a16\u6642 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mo>\u2192<\/mo><\/math><\/span> <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>16<\/mn><mo>&#8211;<\/mo><mn>12<\/mn><mo>=<\/mo><\/math><\/span> \u5348\u5f8c4\u6642\uff09<\/p>\n<p><!-- \u4f8b\u984c --><\/p>\n<section class=\"example-section\">\n<h2 class=\"example-section__heading\">\u4f8b\u984c<\/h2>\n<div class=\"problem-card\">\n<h3 class=\"problem-card__num\">\u554f1<\/h3>\n<p>1\u65e5\u306f \u4f55\u6642\u9593 \u3067\u3059\u304b\u3002<\/p>\n<\/p><\/div>\n<div class=\"problem-card\">\n<h3 class=\"problem-card__num\">\u554f2<\/h3>\n<p>14\u6642\u306f\u3001\u5348\u5f8c \u4f55\u6642 \u3067\u3059\u304b\u3002<\/p>\n<\/p><\/div>\n<div class=\"explanation-block\">\n<h3 class=\"explanation-block__heading\">\u89e3\u8aac<\/h3>\n<div class=\"explanation-card\">\n<h4 class=\"explanation-card__num\">\u554f1<\/h4>\n<p>\u30a2\u30ca\u30ed\u30b0\u6642\u8a08\u3092\u4f7f\u3063\u3066\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u6642\u8a08\u306f1\u65e5\u306b2\u5468\u3057\u307e\u3059\u30021\u5468\u306b\u304b\u304b\u308b\u6642\u9593\u304c <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>12<\/mn><\/math><\/span> \u6642\u9593\u306a\u306e\u3067\u30012\u5468\u306b\u304b\u304b\u308b\u6642\u9593\u306f <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>12<\/mn><mo>+<\/mo><mn>12<\/mn><\/math><\/span> \u3067 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>24<\/mn><\/math><\/span> \u6642\u9593\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u5730\u7403\u81ea\u8eab\u304c1\u56de\u56de\u308b\u6642\u9593\u3068\u540c\u3058\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u7b54\u3048\uff1a24\u6642\u9593<\/p>\n<\/p><\/div>\n<div class=\"explanation-card\">\n<h4 class=\"explanation-card__num\">\u554f2<\/h4>\n<p>24\u6642\u9593\u3067\u8868\u3055\u308c\u305f\u6642\u9593\uff08<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mi>\u25b3<\/mi><\/math><\/span> \u6642\uff09\u3092\u5348\u5f8c <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mi>\u25cb<\/mi><\/math><\/span> \u6642\u306e\u5f62\u306b\u623b\u3059\u306b\u306f\u3001<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mi>\u25b3<\/mi><\/math><\/span> \u6642 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mo>&#8211;<\/mo><mn>12<\/mn><\/math><\/span> \u3092\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u4eca\u56de\u306f <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>14<\/mn><\/math><\/span> \u6642\u306a\u306e\u3067\u3001<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>14<\/mn><mo>&#8211;<\/mo><mn>12<\/mn><\/math><\/span> \u3092\u3057\u3066 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>2<\/mn><\/math><\/span>\u3001\u3064\u307e\u308a\u5348\u5f8c2\u6642\u3067\u3042\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n<p>\u7b54\u3048\uff1a\u5348\u5f8c2\u6642<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p><!-- \u7df4\u7fd2\u554f\u984c --><\/p>\n<section class=\"practice-problems\">\n<h2>\u7df4\u7fd2\u554f\u984c<\/h2>\n<div class=\"problem-card\">\n<h3 class=\"problem-card__num\">\u554f1<\/h3>\n<p>\u5348\u524d\u306f \u4f55\u6642\u9593 \u3042\u308a\u307e\u3059\u304b\u3002\u5348\u5f8c\u306f \u4f55\u6642\u9593 \u3042\u308a\u307e\u3059\u304b\u3002<\/p>\n<\/p><\/div>\n<div class=\"problem-card\">\n<h3 class=\"problem-card__num\">\u554f2<\/h3>\n<p>\u5348\u5f8c4\u6642\u306f\u3001\u4f55\u6642 \u3067\u3059\u304b\u3002\uff0824\u6642\u9593\u3067 \u7b54\u3048\u307e\u3057\u3087\u3046\uff09<\/p>\n<\/p><\/div>\n<div class=\"problem-card\">\n<h3 class=\"problem-card__num\">\u554f3<\/h3>\n<p>21\u6642\u306f\u3001\u5348\u5f8c \u4f55\u6642 \u3067\u3059\u304b\u3002<\/p>\n<\/p><\/div>\n<\/section>\n<p><!-- \u5fdc\u7528\u554f\u984c --><\/p>\n<section class=\"advanced-problems\">\n<h2>\u5fdc\u7528\u554f\u984c<\/h2>\n<div class=\"problem-card\">\n<h3 class=\"problem-card__num\">\u554f1<\/h3>\n<p>\u304b\u3093\u3070\u3093\u306b \u6642\u9593\u304c \u66f8\u3044\u3066 \u3042\u308a\u307e\u3059\u3002\u3053\u306e \u304a\u5e97\u306f \u5348\u5f8c \u4f55\u6642 \u307e\u3067 \u3084\u3063\u3066 \u3044\u307e\u3059\u304b\u3002<\/p>\n<p>    <!-- \u753b\u50cf\u633f\u5165\u4e88\u5b9a\uff1a\u304a\u5e97\u306e\u770b\u677f\u3002\u300c20\u6642\u307e\u3067\u300d\u3068\u66f8\u3044\u3066\u3042\u308b --><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.risu-japan.com\/drill\/wp-content\/uploads\/2026\/06\/A-picture-on-the-shops-sign.-It-says-Open-until-8-PM-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" class=\"alignnone size-medium wp-image-474\" srcset=\"https:\/\/www.risu-japan.com\/drill\/wp-content\/uploads\/2026\/06\/A-picture-on-the-shops-sign.-It-says-Open-until-8-PM-300x300.jpg 300w, https:\/\/www.risu-japan.com\/drill\/wp-content\/uploads\/2026\/06\/A-picture-on-the-shops-sign.-It-says-Open-until-8-PM-150x150.jpg 150w, https:\/\/www.risu-japan.com\/drill\/wp-content\/uploads\/2026\/06\/A-picture-on-the-shops-sign.-It-says-Open-until-8-PM-768x768.jpg 768w, https:\/\/www.risu-japan.com\/drill\/wp-content\/uploads\/2026\/06\/A-picture-on-the-shops-sign.-It-says-Open-until-8-PM.jpg 800w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>\n  <\/div>\n<div class=\"problem-card\">\n<h3 class=\"problem-card__num\">\u554f2<\/h3>\n<p>\u5348\u5f8c1\u6642 \u3068 14\u6642 \u3067\u306f\u3001\u3069\u3061\u3089\u304c \u304a\u305d\u3044 \u6642\u3053\u304f \u3067\u3059\u304b\u3002<\/p>\n<\/p><\/div>\n<div class=\"problem-card\">\n<h3 class=\"problem-card__num\">\u554f3<\/h3>\n<p>1\u65e5\u306f 24\u6642\u9593 \u3067\u3059\u3002\u3067\u306f\u30012\u65e5\u306f \u4f55\u6642\u9593 \u3067\u3059\u304b\u3002<\/p>\n<\/p><\/div>\n<\/section>\n<p><!-- \u89e3\u7b54\u3068\u89e3\u8aac --><\/p>\n<section class=\"answer-section\">\n<h2>\u89e3\u7b54\u3068\u89e3\u8aac<\/h2>\n<div class=\"answer-group answer-group--practice\">\n<h3>\u7df4\u7fd2\u554f\u984c<\/h3>\n<div class=\"explanation-card\">\n<h4 class=\"explanation-card__num\">\u554f1<\/h4>\n<p>1\u65e524\u6642\u9593\u306e\u3046\u3061\u3001\u6700\u521d\u306b\u6642\u8a08\u304c\u4e00\u5468\u3059\u308b\u6642\u9593\u3092\u300c\u5348\u524d\u300d\u3001\u6b21\u306b\u6642\u8a08\u304c\u4e00\u5468\u3059\u308b\u6642\u9593\u3092\u300c\u5348\u5f8c\u300d\u3068\u3044\u3044\u307e\u3059\u3002\u6642\u8a08\u304c\u4e00\u5468\u3059\u308b\u306e\u306b\u304b\u304b\u308b\u6642\u9593\u306f\u305d\u308c\u305e\u308c <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>12<\/mn><\/math><\/span> \u6642\u9593\u306a\u306e\u3067\u7b54\u3048\u306f\u5348\u524d\u304c <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>12<\/mn><\/math><\/span> \u6642\u9593\u3001\u5348\u5f8c\u3082 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>12<\/mn><\/math><\/span> \u6642\u9593\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u7b54\u3048\uff1a\u5348\u524d\uff1a12\u6642\u9593\u3001\u5348\u5f8c\uff1a12\u6642\u9593<\/p>\n<\/p><\/div>\n<div class=\"explanation-card\">\n<h4 class=\"explanation-card__num\">\u554f2<\/h4>\n<p>\u5348\u5f8c <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mi>\u25cb<\/mi><\/math><\/span> \u6642\u309224\u6642\u9593\u3067\u8868\u3055\u308c\u305f\u6642\u9593\u306b\u3059\u308b\u306b\u306f\u3001<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mi>\u25cb<\/mi><\/math><\/span> \u6642 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mo>+<\/mo><mn>12<\/mn><\/math><\/span> \u3092\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u4eca\u56de\u306f\u5348\u5f8c4\u6642\u306a\u306e\u3067\u3001<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>4<\/mn><mo>+<\/mo><mn>12<\/mn><\/math><\/span> \u3092\u3057\u3066 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>16<\/mn><\/math><\/span>\u3001\u3064\u307e\u308a <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>16<\/mn><\/math><\/span> \u6642\u3067\u3042\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n<p>\u7b54\u3048\uff1a16\u6642<\/p>\n<\/p><\/div>\n<div class=\"explanation-card\">\n<h4 class=\"explanation-card__num\">\u554f3<\/h4>\n<p>24\u6642\u9593\u3067\u8868\u3055\u308c\u305f\u6642\u9593\uff08<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mi>\u25b3<\/mi><\/math><\/span> \u6642\uff09\u3092\u5348\u5f8c <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mi>\u25cb<\/mi><\/math><\/span> \u6642\u306e\u5f62\u306b\u623b\u3059\u306b\u306f\u3001<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mi>\u25b3<\/mi><\/math><\/span> \u6642 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mo>&#8211;<\/mo><mn>12<\/mn><\/math><\/span> \u3092\u3059\u308c\u3070\u3044\u3044\u306e\u3067\u3057\u305f\u306d\u3002\u4eca\u56de\u306f <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>21<\/mn><\/math><\/span> \u6642\u306a\u306e\u3067\u3001<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>21<\/mn><mo>&#8211;<\/mo><mn>12<\/mn><\/math><\/span> \u3092\u3059\u308b\u3068 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>9<\/mn><\/math><\/span>\u3001\u3064\u307e\u308a\u5348\u5f8c9\u6642\u3067\u3042\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n<p>\u7b54\u3048\uff1a\u5348\u5f8c9\u6642<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"answer-group answer-group--advanced\">\n<h3>\u5fdc\u7528\u554f\u984c<\/h3>\n<div class=\"explanation-card\">\n<h4 class=\"explanation-card__num\">\u554f1<\/h4>\n<p>24\u6642\u9593\u3067\u8868\u3055\u308c\u305f\u6642\u9593\uff08<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mi>\u25b3<\/mi><\/math><\/span> \u6642\uff09\u3092\u5348\u5f8c <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mi>\u25cb<\/mi><\/math><\/span> \u6642\u306e\u5f62\u306b\u623b\u3059\u306b\u306f\u3001<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mi>\u25b3<\/mi><\/math><\/span> \u6642 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mo>&#8211;<\/mo><mn>12<\/mn><\/math><\/span> \u3092\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4eca\u56de\u306f <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>20<\/mn><\/math><\/span> \u6642\u306a\u306e\u3067\u3001<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>20<\/mn><mo>&#8211;<\/mo><mn>12<\/mn><\/math><\/span> \u3092\u3057\u3066 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>8<\/mn><\/math><\/span>\u3001\u3064\u307e\u308a\u5348\u5f8c8\u6642\u3067\u3042\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n<p>\u7b54\u3048\uff1a\u5348\u5f8c8\u6642<\/p>\n<\/p><\/div>\n<div class=\"explanation-card\">\n<h4 class=\"explanation-card__num\">\u554f2<\/h4>\n<p>\u9055\u3046\u8868\u8a18\u306e\u6642\u9593\u3092\u6bd4\u3079\u308b\u5834\u5408\u306f\u3001\u3069\u3061\u3089\u304b\u3092\u540c\u3058\u8868\u8a18\u306b\u63c3\u3048\u3066\u3042\u3052\u307e\u3057\u3087\u3046\u3002\u4eca\u56de\u306f\u5348\u5f8c1\u6642\u309224\u6642\u9593\u8868\u8a18\u306b\u3057\u307e\u3059\u3002\u5348\u5f8c <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mi>\u25cb<\/mi><\/math><\/span> \u6642\u309224\u6642\u9593\u3067\u8868\u3055\u308c\u305f\u6642\u9593\u306b\u3059\u308b\u306b\u306f\u3001<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mi>\u25cb<\/mi><\/math><\/span> \u6642 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mo>+<\/mo><mn>12<\/mn><\/math><\/span> \u3092\u3059\u308b\u306e\u3067\u3057\u305f\u306d\u3002\u4eca\u56de\u306f\u5348\u5f8c1\u6642\u306a\u306e\u3067\u3001<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>1<\/mn><mo>+<\/mo><mn>12<\/mn><\/math><\/span> \u3092\u3057\u3066 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>13<\/mn><\/math><\/span>\u3001\u3064\u307e\u308a <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>13<\/mn><\/math><\/span> \u6642\u3068\u306a\u308a\u307e\u3059\u3002<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>13<\/mn><\/math><\/span> \u6642\u3068 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>14<\/mn><\/math><\/span> \u6642\u3092\u6bd4\u3079\u3066\u307f\u308b\u3068\u3001<span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>14<\/mn><\/math><\/span> \u6642\u306e\u307b\u3046\u304c\u9045\u3044\u3053\u3068\u304c\u5206\u304b\u308b\u306e\u3067 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>14<\/mn><\/math><\/span> \u6642\u306e\u307b\u3046\u304c\u9045\u3044\u6642\u523b\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u7b54\u3048\uff1a14\u6642<\/p>\n<\/p><\/div>\n<div class=\"explanation-card\">\n<h4 class=\"explanation-card__num\">\u554f3<\/h4>\n<p>1\u65e5\u306f <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>24<\/mn><\/math><\/span> \u6642\u9593\u3067\u3057\u305f\u306d\u30022\u65e5\u306f1\u65e5 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mo>+<\/mo><\/math><\/span> 1\u65e5\u306a\u306e\u3067 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>24<\/mn><\/math><\/span> \u6642\u9593 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mo>+<\/mo><mn>24<\/mn><\/math><\/span> \u6642\u9593 <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mo>=<\/mo><mn>48<\/mn><\/math><\/span> \u6642\u9593\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u65e5\u6570\u304c1\u65e5\u5897\u3048\u308b\u3068\u3001\u6642\u9593\u306f <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mn>24<\/mn><\/math><\/span> \u6642\u9593\u5897\u3048\u308b\u3053\u3068\u306b\u6ce8\u76ee\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u7b54\u3048\uff1a48\u6642\u9593<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p><!-- \u5b66\u7fd2\u306e\u30a2\u30c9\u30d0\u30a4\u30b9 --><\/p>\n<aside class=\"advice-box\">\n<h2 class=\"advice-box__heading\">\u5b66\u7fd2\u306e\u30a2\u30c9\u30d0\u30a4\u30b9<\/h2>\n<div class=\"advice-box__body\">\n<p>\u4eca\u56de\u306f\u4e00\u65e5\u306e\u6642\u9593\u306e\u8868\u3057\u65b9\u306b\u3064\u3044\u3066\u5b66\u3073\u307e\u3057\u305f\u3002\u5927\u5207\u306a\u30dd\u30a4\u30f3\u30c8\u3092\u307e\u3068\u3081\u307e\u3057\u3087\u3046\u3002<\/p>\n<ul>\n<li><strong>\u5348\u5f8c\u306e\u6642\u523b <span class=\"risu-math risu-math--inline\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\"><mo>\u2194<\/mo><\/math><\/span> 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