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Unit 18 · Peratusan Objek
Unit 18

Peratusan Objek

Ada 10 biji belon. 6 biji berwarna merah.
Berapa peratus belon berwarna merah?

Peratusan Objek
物件的百分比 = peratusan objek 要知道一组东西里某一部分占百分之几,先写成分数:分子是那一部分的数量,分母是全部的数量。然后把分数化成分母是一百的分数,分子就是百分之几。 例子:四个杯子里有一个破了 → 1/4 = 25%。 注意:分母要用全部的数量,不是剩下的数量。
percentage of objects = peratusan objek To find what percent of a group a part is, first write a fraction: the part on top and the whole group underneath. Then change the fraction to hundredths; the numerator gives the percentage. Example: 1 of 4 cups is broken, so 1/4 = 25%. Watch out: the denominator is the whole group, not the part left over.
Daripada 10

6 daripada 10 belon

bahagian ÷ semua → perseratus

610 = 60100 = 60%
从十个里面 = daripada sepuluh 十个气球里有六个红色,写成十分之六。十乘十等于一百,分子六也乘十,得一百分之六十,所以红色气球占百分之六十。数一数灰色的,有四个,占百分之四十,两部分加起来是百分之一百。 例子:10 个里面 3 个 → 30%。 注意:从十个里面算,每一个就是百分之十。
out of ten = daripada sepuluh 6 of the 10 balloons are red: 6/10. 10 × 10 = 100, so 6/10 = 60/100 = 60%. The 4 grey balloons are 40%, and the two parts make 100%. Example: 3 out of 10 is 30%. Watch out: out of ten, each one is 10%.
Daripada 50

19 daripada 50 murid naik bas

1950 = ?%

19 × 250 × 2 = 38100 = 38%
从五十个里面 = daripada lima puluh 五十个学生里有十九个坐巴士,写成五十分之十九。五十乘二等于一百,分子十九也乘二,得一百分之三十八,所以坐巴士的占百分之三十八。 例子:50 个里面 7 个 → 14/100 = 14%。 注意:从五十个里面算,每一个就是百分之二。
out of fifty = daripada lima puluh 19 of 50 pupils take the bus: 19/50. 50 × 2 = 100, so multiply 19 by 2 as well: 38/100 = 38%. Example: 7 out of 50 is 14/100 = 14%. Watch out: out of fifty, each one is 2%.
Permudahkan dahulu

18 daripada 40 biji telur

1840 = ?%

1840 = 920 = 45100 = 45%
atau 920 × 100% = 9 × 5% = 45%
先约分再化 = permudahkan dahulu 四十个鸡蛋里有十八个是褐色的,写成四十分之十八。四十不能直接乘一个整数变成一百,所以先约分:分子分母同时除以二,得二十分之九。二十乘五等于一百,所以变成一百分之四十五,就是百分之四十五。也可以用乘以 100% 的方法:9/20 × 100% = 9 × 5% = 45%。 例子:6/40 = 3/20 = 15%。 注意:约分以后再找乘数。
simplify first = permudahkan dahulu 18 of the 40 eggs are brown: 18/40. 40 cannot be multiplied by a whole number to make 100, so simplify first: divide both by 2 to get 9/20. 20 × 5 = 100, so 9/20 = 45/100 = 45%. Or multiply by 100%: 9/20 × 100% = 9 × 5% = 45%. Example: 6/40 = 3/20 = 15%. Watch out: simplify first, then find the multiplier.
Daripada 25

9 daripada 25 ekor ikan emas

925 = ?%

9 × 425 × 4 = 36100 = 36%
从二十五个里面 = daripada dua puluh lima 二十五条鱼里有九条金鱼,写成二十五分之九。二十五乘四等于一百,分子九也乘四,得一百分之三十六,所以金鱼占百分之三十六。 例子:25 条里面 4 条 → 16%。 注意:从二十五个里面算,每一个就是百分之四。
out of twenty-five = daripada dua puluh lima 9 of the 25 fish are goldfish: 9/25. 25 × 4 = 100, so 9 × 4 = 36: 36/100 = 36%. Example: 4 out of 25 is 16%. Watch out: out of twenty-five, each one is 4%.
Cuba

Ada 20 biji epal. 13 biji berwarna hijau. Berapa peratus epal hijau?

二十分之几 = per dua puluh 先写分数:分子是题目问的那一部分(青苹果)的数量,分母是全部苹果的数量。再把分母变成一百(分子分母乘同一个数),或者乘以 100%,就得到百分比。 例子:20 个橙里有 3 个是坏的 → 3/20 = 15/100 = 15%。 注意:分子要用题目问的那一部分,不要用另一部分;分子也不能照抄当百分比。
twentieths = per dua puluh Write the fraction first: the part the question asks about (green apples) on top and the whole group of apples underneath. Then make the denominator 100 by multiplying top and bottom by the same number, or multiply by 100%. Example: 3 of 20 oranges are bad, so 3/20 = 15/100 = 15%. Watch out: use the part the question asks about, and do not copy the numerator as the percentage.
Cuba

Dalam 50 keping kad, 21 keping bernombor genap. Berapa peratus kad bernombor genap?

五十分之几 = per lima puluh “五十张里有几张”写成五十分之几。五十乘二就是一百,所以分子也乘二;从五十个里面算,每一个就是百分之二。 例子:50 张里面 23 张 → 23/50 = 46/100 = 46%。 注意:分母不是一百时,分子不能直接当作百分比;用五十减去部分,求的是另一部分。
fiftieths = per lima puluh 'How many out of 50' is written as a fraction over 50. 50 × 2 = 100, so multiply the numerator by 2 too; out of fifty, each one is 2%. Example: 23 out of 50 cards: 23/50 = 46/100 = 46%. Watch out: when the denominator is not 100, the numerator is not the percentage, and 50 minus the part gives the other part.
Ringkasan

Syabas!

bahagian / semua

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