Latihan
Latihan tambahan
5 soalan untuk mengukuhkan unit Akal Pintar. Jika salah, baca petunjuk dan cuba lagi.
Kad: 3, 8, 1, 6, 0. Digit pertama paling besar. Digit manakah di tempat puluh ribu?
3
8
1
6
0
找最大的数字 = cari digit paling besar
题目说首位要放最大的数字,问万位放哪一张卡。把五张卡两两比较,留下较大的,一直比到最后,剩下的就是最大的数字。0 是最小的数字,而且不能放在首位。
例子:卡片 2、5、4、7 中,2 和 5 比留 5,5 和 4 比留 5,5 和 7 比留 7,最大的数字就是 7。
注意:看到一个大的数字先别急着停,要把全部卡片都比完。
find the largest digit = cari digit paling besar
The first digit must be the largest card, so which card goes in the ten thousands place? Compare the cards two at a time, keep the bigger one and carry on until all are compared. Zero is the smallest digit and can never come first.
Example: among 2, 5, 4 and 7, keep 5 over 2, 5 over 4, then 7 over 5, so the largest digit is 7.
Watch out: do not stop at the first big digit you see; compare every card.
Kad: 3, 8, 1, 6, 0. Digit terakhir boleh dibahagi dengan 2. Kad manakah boleh diletakkan di tempat sa?
3
8
1
6
0
偶数 = nombor genap
题目问哪些卡可以放在个位,让这个数能被 2 整除。能被 2 整除的数字是 0、2、4、6、8。先把卡片里的偶数找出来,再划掉已经放在万位的那一张,因为每张卡只能用一次。
例子:卡片 4、9、2、5、7,首位放 9 以后,个位可以放 4 或 2。
注意:0 除以 2 没有余数,所以 0 也是偶数;已经用过的卡不能再用。
even digit = digit genap
Which cards can go in the ones place so the number divides by 2? The digits that divide by 2 are 0, 2, 4, 6 and 8. Find the even cards, then remove any card already used in the ten thousands place, because each card is used once.
Example: with cards 4, 9, 2, 5, 7 and 9 placed first, the ones place can take 4 or 2.
Watch out: 0 divided by 2 leaves no remainder, so 0 is even; a used card cannot be used again.
Nombor manakah dibentuk dengan betul daripada kad 3, 8, 1, 6, 0?
检查答案 = semak jawapan
要找出用这五张卡正确组成、而且符合两个条件的数。检查三件事:首位是不是最大的数字;个位是不是偶数;五张卡是否每张都用了一次、没有多也没有少。三项都通过才算对。
例子:卡片 7、2、5、4、1 → 75 214 首位 7 最大、个位 4 是偶数、五张卡各用一次,符合。
注意:个位是单数的数不能被 2 整除;首位放错也不行。
check the answer = semak jawapan
Find the number made correctly from these five cards that follows both rules. Check three things: the first digit is the largest, the ones digit is even, and every card is used exactly once.
Example: cards 7, 2, 5, 4, 1 → 75 214 starts with the largest digit, ends with an even digit and uses each card once.
Watch out: a number ending in an odd digit cannot be divided by 2, and a wrong first digit also fails.
Apakah nombor paling kecil yang mengikut syarat (kad 3, 8, 1, 6, 0)?
最小的数 = nombor paling kecil
这次要排出符合条件的最小数。首位的条件不变,还是要放最大的数字;个位还是要放偶数。其余的卡要让数尽量小,所以从千位开始放小的数字,由小到大排。若有两个偶数,想一想哪一个留在个位能让前面的数位更小。
例子:卡片 7、2、5、4 → 首位 7,个位 4,中间 2、5 → 7 254。
注意:0 可以放在中间的数位,它能让数变小;只是 0 不能放在首位。
smallest number = nombor paling kecil
Now make the smallest number that follows the rules. The first digit is still the largest card and the last digit is still even. To keep the number small, fill the thousands place onward with small digits, from smallest to largest. If two even cards remain, think which one to keep for the ones place.
Example: cards 7, 2, 5, 4 give 7 254.
Watch out: 0 may go in a middle place and makes the number smaller; it just cannot come first.
Pilih nama nombor bagi 86 310.
读出这个数 = sebut nombor
题目给一个五位数,要找出正确的马来文读法。先读前两位,读成“几十几 ribu”;再读后三位。后三位的十位和个位是 10 时,马来文读 sepuluh,不读 satu puluh。
例子:41 210 = empat puluh satu ribu dua ratus sepuluh。
注意:个位是 0 时不读 kosong;也要检查读法有没有把五位数读成四位数。
read the number = sebut nombor
Choose the correct Malay reading of the five-digit number. Read the first two digits as a number of thousands, then read the last three digits. A tens-and-ones pair of 10 is sepuluh, not satu puluh.
Example: 41 210 = empat puluh satu ribu dua ratus sepuluh.
Watch out: a 0 in the ones place is not read as kosong, and check that no reading treats the number as a four-digit number.
Tahniah! Kamu telah menyelesaikan latihan.
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