Unit 15
Kenal Peratus
Bateri telefon Kak Mei menunjukkan 78%.
Simbol % dibaca peratus. Peratus bermaksud daripada 100 atau per seratus.
🔋 78%
百分比 = peratus
“%”这个符号读作 peratus，意思是“每一百份里占几份”。电池显示 78%，就是把满电分成 100 等份，现在还剩 78 份。生活中常见百分比：电池电量、果汁标签、商店折扣牌。
例子：成绩单写 90%，表示 100 分里拿到 90 分。
注意：百分比一定是跟 100 比，不是跟 10 比。
percent = peratus
The sign % is read as peratus. It means 'out of 100'. A battery showing 78% has 78 parts left when the full charge is split into 100 equal parts. We meet percentages on phone batteries, juice labels and sale signs.
Example: a report card showing 90% means 90 marks out of 100.
Watch out: a percentage always compares with 100, never with 10.
Petak seratus
37 daripada 100
Pecahan perseratus ditulis dalam peratus
37 daripada 100
= 37100
= 37%
tiga puluh tujuh peratus
= 37100
= 37%
tiga puluh tujuh peratus
百格图 = petak seratus
一张百格图有 100 格，涂了 37 格，就是 100 份里占 37 份，写成分数 37/100。把分母 100 换成 % 号，就是 37%。
例子：100 格里涂 52 格 → 52/100 → 52%。
注意：% 已经代表“除以 100”，写了 % 就不要再写分母。
hundred square = petak seratus
A hundred square has 100 small squares. Here 37 are coloured, so 37 parts out of 100, or the fraction 37/100. Replace the denominator 100 with the sign % and it becomes 37%, read as tiga puluh tujuh peratus.
Example: 52 of 100 squares coloured → 52/100 → 52%.
Watch out: the % sign already means 'out of 100', so do not also write a denominator.
Sebut dan tulis
Peratus dalam perkataan
Baca nombor dahulu, kemudian sebut "peratus"
| Peratus | Perkataan |
|---|---|
| 12% | dua belas peratus |
| 50% | lima puluh peratus |
| 83% | lapan puluh tiga peratus |
| 100% | seratus peratus |
读写百分数 = sebut dan tulis peratus
读百分数时，先把前面的数字读出来，最后再加上“百分”这个词（peratus）。百分之百表示全部都有。
例子：45% → empat puluh lima peratus。
注意：十位和个位不要读反，83% 要先读十位的八十，再读个位的三。
say and write a percentage = sebut dan tulis peratus
Read the number in Malay first, then add the word peratus. 12% is dua belas peratus and 83% is lapan puluh tiga peratus. 100% means the whole thing, seratus peratus.
Example: 45% → empat puluh lima peratus.
Watch out: keep the digits in order; 83% is not tiga puluh lapan peratus.
Cuba
Tulis 43% dalam perkataan.
baca ikut nilai tempat = 按数位读
读两位数的百分数，先看十位上的数字，读成“几 puluh”；接着读个位上的数字；最后加上 peratus 这个词。读的次序和数字的次序一样。
例子：29% → dua puluh sembilan peratus；61% → enam puluh satu peratus。
注意：两位数的百分数里不会出现 ratus。
baca ikut nilai tempat = read by place value
To read a two-digit percentage, look at the tens digit first and say it as '... puluh'. Next say the ones digit, and finish with the word peratus. The words follow the same order as the digits.
Example: 29% → dua puluh sembilan peratus; 61% → enam puluh satu peratus.
Watch out: a two-digit percentage never contains the word ratus.
Perseratus ⇄ peratus
Dua arah
Pecahan perseratus dan peratus ialah nilai yang sama
Ah Kow: 81 daripada 100 balingan masuk 🏀
81100 = 81%
23% = 23100
分数与百分数互换 = tukar pecahan perseratus dan peratus
分母是 100 的分数，分子就是百分数：81/100 = 81%。反过来，23% 就写成 23/100。两种写法数值一样。
例子：100 个气球里 17 个黄色 → 17/100 = 17%。
注意：只有分母是 100，才能直接把分子抄成百分数。
fraction to percent and back = tukar pecahan perseratus dan peratus
When the denominator is 100, the numerator is the percentage: 81/100 = 81%. Going back, 23% becomes 23 over 100, that is 23/100. Both forms have the same value.
Example: 17 yellow balloons out of 100 → 17/100 = 17%.
Watch out: copy the numerator straight across only when the denominator is 100.
Susun
Susun: pecahan dahulu, kemudian = dan peratus.
kira petak berwarna = 数涂色格
先数整行：每一整行有 10 格；再数最后一行零散的格子，两个数合起来就是涂色的格数。把格数写成分母 100 的分数，放等号，再写成百分数。
例子：五整行加 2 格 → 52/100 = 52%。
注意：分母要写 100，不是 10。
kira petak berwarna = count the coloured squares
Count the full rows first; each full row has 10 squares. Then count the loose squares in the last row and put the two numbers together. Write that count over 100, place the equals sign, then write the same count with the % sign.
Example: five full rows and 2 more → 52/100 = 52%.
Watch out: the denominator is 100, not 10.
Peratus → perpuluhan
57% = 0.57
Melalui pecahan perseratus
57% = 57100
= 0.57
= 0.57
| sa | . | persepuluh | perseratus | |
|---|---|---|---|---|
| 57% | 0 | . | 5 | 7 |
百分数化小数 = tukar peratus kepada perpuluhan
先把百分数写成分母 100 的分数：57% = 57/100。57/100 就是 57 个百分之一，写成小数 0.57：个位是 0，十分位是 5，百分位是 7。
例子：48% = 48/100 = 0.48。
注意：小数点前要写 0，不能写成 57.0 或 5.7。
percent to decimal = tukar peratus kepada perpuluhan
First write the percentage as a fraction over 100: 57% = 57/100. That is 57 hundredths, written as the decimal 0.57: ones 0, tenths 5, hundredths 7.
Example: 48% = 48/100 = 0.48.
Watch out: put 0 before the decimal point; the answer is not 57.0 or 5.7.
Peratus satu digit
4% = 0.04
Jangan lupa sifar di tempat persepuluh
4% = 4100 = 0.04
| sa | . | persepuluh | perseratus | |
|---|---|---|---|---|
| 4% | 0 | . | 0 | 4 |
| 40% | 0 | . | 4 | 0 |
一位数的百分数 = peratus satu digit
4% = 4/100，只有 4 个百分之一，没有十分之一，所以十分位要写 0 占位，百分位写 4，得到 0.04。表格下一行是 40% = 0.40，两者差很多。
例子：2% = 2/100 = 0.02。
注意：4% 不能写成 0.4，0.4 其实是 40%。
single-digit percentage = peratus satu digit
4% = 4/100: four hundredths and no tenths. So the tenths place holds a 0 as a placeholder and the hundredths place holds 4, giving 0.04. The next row shows 40% = 0.40, which is ten times bigger.
Example: 2% = 2/100 = 0.02.
Watch out: 4% is not 0.4, because 0.4 is really 40%.
Perpuluhan → peratus
0.34 = 34%
Garis nombor perpuluhan dan pecahan
0.31
0.32
0.33
0.34
0.35
31/100
32/100
33/100
34/100
35/100
0.34 = 34/100 = 34%
小数化百分数 = tukar perpuluhan kepada peratus
数线上面是小数，下面是同一点的分数。0.34 对着 34/100，而 34/100 就是 34%。两位小数的两个数字，就是百分数。
例子：0.21 = 21/100 = 21%。
注意：0.34 不是 3.4%，也不是 340%。
decimal to percent = tukar perpuluhan kepada peratus
The top labels are decimals and the bottom labels are the matching fractions. 0.34 sits at 34/100, and 34/100 is 34%. So for a two-place decimal, the two digits after the point give the percentage.
Example: 0.21 = 21/100 = 21%.
Watch out: 0.34 is not 3.4% or 340%; read both digits after the point together.
Padankan
Peratus dan perpuluhan
padankan peratus dan perpuluhan = 百分数配小数
把每个百分数先写成分母 100 的分数，再写成两位小数：十位上的数字放在十分位，个位上的数字放在百分位。只有一位数字的百分数，十分位要补零占位。
例子：47% = 0.47，3% = 0.03。
注意：两张卡数字相同、次序不同时，要看清哪个数字在十分位。
padankan peratus dan perpuluhan = match percent and decimal
Write each percentage as a fraction over 100, then as a decimal with two places: the tens digit goes in the tenths place and the ones digit goes in the hundredths place. A one-digit percentage needs a zero in the tenths place.
Example: 47% = 0.47 and 3% = 0.03.
Watch out: when two cards use the same digits in a different order, check which digit sits in the tenths.
Cuba
0.01 dalam peratus ialah …
perpuluhan kepada peratus = 小数化百分数
两位小数先写成分母 100 的分数：小数点后面的两个数字合起来当分子。分母是 100 时，分子就是百分数的数字。十分位上的 0 只是占位。
例子：0.06 = 6/100 = 6%；0.32 = 32/100 = 32%。
注意：写了 % 号，就不要再保留原来的小数点。
perpuluhan kepada peratus = decimal to percent
Write a two-place decimal as a fraction over 100 first: the two digits after the point together make the numerator. When the denominator is 100, the numerator is the percentage. A 0 in the tenths place only holds the place.
Example: 0.06 = 6/100 = 6%, and 0.32 = 32/100 = 32%.
Watch out: once you write the % sign, do not keep the old decimal point.
Ringkasan
Syabas!
46100 = 46% = 0.46
Peratus bermaksud daripada 100. Tukar peratus ⇄ pecahan perseratus ⇄ perpuluhan.
Latihan tambahan →