Hari dan Minggu

周化天 = minggu ke hari 日历上每一行是一周，有七天。五周就是五行，五乘七等于三十五天，数一数涂色的格子也刚好三十五格。 例子：3 周 = 21 天。 注意：周化天要乘七。

weeks to days = minggu ke hari Each calendar row is one week of 7 days. Five weeks are five rows: 5 × 7 = 35 days, and there are exactly 35 shaded squares. Example: 3 weeks = 21 days. Watch out: multiply by 7 to change weeks to days.

天化周 = hari ke minggu 六十三天里有几个七天？六十三除以七等于九，没有余数，所以刚好是九周。 例子：28 天 = 4 周。 注意：天化周要除以七。

days to weeks = hari ke minggu How many sevens are in 63 days? 63 ÷ 7 = 9 with no remainder, so exactly 9 weeks. Example: 28 days = 4 weeks. Watch out: divide by 7 to change days to weeks.

余下的天 = baki hari 方法一：把二十五天分成三个七天，还剩四天，所以是三周四天。方法二：二十五除以七得三余四，商三是周，余数四是天。 例子：17 天 = 2 周 3 天。 注意：余数一定比七小。

leftover days = baki hari Method 1: 25 days are three 7s with 4 left, so 3 weeks 4 days. Method 2: 25 ÷ 7 = 3 remainder 4; the quotient is weeks and the remainder is days. Example: 17 days = 2 weeks 3 days. Watch out: the remainder must be less than 7.

几周几天化天 = minggu dan hari ke hari 先把六周换成天：六乘七得四十二天；再加上原来的五天，一共四十七天。 例子：2 周 1 天 = 15 天。 注意：别忘了加后面的天数。

weeks and days to days = minggu dan hari ke hari Change the 6 weeks first: 6 × 7 = 42 days; then add the 5 days: 47 days. Example: 2 weeks 1 day = 15 days. Watch out: do not forget to add the days part.

周化天 = minggu ke hari 每一周有七天，所以几周就有几个七天，用周数乘七。如果周数是两位数，可以拆开：十周先乘七，剩下的周再乘七，最后相加。 例子：13 周 → 10 × 7 = 70，3 × 7 = 21 → 91 天。 注意：周化天要乘七；把周数加七或乘十都不对。

weeks to days = minggu ke hari Every week has 7 days, so multiply the number of weeks by 7. For a two-digit number of weeks you can split it: 10 weeks × 7, the other weeks × 7, then add. Example: 13 weeks → 10 × 7 = 70 and 3 × 7 = 21 → 91 days. Watch out: multiply by 7; adding 7 or multiplying by 10 is wrong.

天化周和天 = hari ke minggu dan hari 把天数除以七：商是完整的周数，余数是不满一周的天数。可以用七的乘法表找：哪一个七的倍数最接近、又不超过题目的天数。 例子：30 天 → 4 × 7 = 28，30 − 28 = 2 → 4 周 2 天。 注意：余下的天一定少于七；刚好七天就要再算成一周。

days to weeks and days = hari ke minggu dan hari Divide the days by 7: the quotient is whole weeks and the remainder is the days left. Use the 7 times table to find the multiple of 7 that is closest to the days without going over. Example: 30 days → 4 × 7 = 28, 30 − 28 = 2 → 4 weeks 2 days. Watch out: the days left are always fewer than 7; exactly 7 days make another week.