Latihan tambahan

几天几小时化小时 = hari dan jam ke jam 分两步：先只把“天”的部分乘二十四换成小时，再把原来就有的小时加上去，两部分合起来才是总小时。 例子：1 天 6 小时 → 24 + 6 = 30 小时。 注意：常见错误是换完天数就停，忘了加上后面的小时。

days and hours to hours = hari dan jam ke jam Two steps: change only the days part into hours by multiplying by 24, then add the hours that were already there. Both parts together give the total hours. Example: 1 day 6 hours → 24 + 6 = 30 hours. Watch out: a common mistake is to stop after changing the days and forget the extra hours.

天数乘二十四 = darab 24 把天换成小时，用天数乘二十四。可以用竖式：先用天数乘个位的四，满十进位；再乘十位的二，加上进位的数。 例子：6 天 → 6 × 24 = 144 小时。 注意：进位的数字要加到下一位，漏加了答案就会少。

multiply by 24 = darab 24 To change days into hours, multiply the days by 24. In columns, multiply the 4 in the ones first and carry any tens, then multiply the 2 in the tens and add the carried number. Example: 6 days → 6 × 24 = 144 hours. Watch out: add the carried digit to the next place, or the answer will be too small.

除以二十四 = bahagi dengan 24 题目的小时比一天多，要换成几天几小时。找出这些小时里最多有几个二十四（就是天数），再用总小时减去这些天的小时，剩下的就是小时。 例子：49 小时 → 2 × 24 = 48，49 − 48 = 1 → 2 天 1 小时。 注意：不能把两位数的两个数字拆开，直接当作天和小时。

divide by 24 = bahagi dengan 24 The hours are more than a day, so write them as days and hours. Find the most 24s that fit (that is the number of days), then subtract those hours from the total; what is left is the hours. Example: 49 hours → 2 × 24 = 48, 49 − 48 = 1 → 2 days 1 hour. Watch out: do not split the two digits of the number into days and hours.

航行时间 = tempoh pelayaran 题目给的是总小时，要改写成“几天几小时”。先估计：一百多小时大约是几天？再用除以二十四的方法，商写成天，余数写成小时。 例子：110 小时 → 4 × 24 = 96，余 14 → 4 天 14 小时。 注意：最后的小时如果是二十四或更多，就还没换完。

sailing time = tempoh pelayaran The question gives total hours to be written as days and hours. Estimate first: about how many days is a hundred-odd hours? Then divide by 24; the quotient is days and the remainder is hours. Example: 110 hours → 4 × 24 = 96, remainder 14 → 4 days 14 hours. Watch out: if the hours left are 24 or more, you have not finished.