sentimeter (cm) = centimetre Short things such as an eraser or a pencil are measured in centimetres, written cm. One centimetre is about the width of a fingernail. A small unit gives a clear number for a small object. Example: an eraser is 5 cm long and a crayon is 9 cm long, so the crayon is 9 - 5 = 4 cm longer. Watch out: write both letters, cm, not just the letter c.
Langkah 2
Meter untuk objek panjang
Gunakan meter untuk objek atau jarak yang lebih panjang seperti meja atau bilik. 1 meter sama dengan 100 sentimeter.
meter (m) = metre Long objects and distances, like a table or a room, are measured in metres, written m. One metre equals 100 centimetres, about one big step of an adult. Using metres keeps the numbers small and easy to read. Example: a classroom is 8 m long and a corridor is 20 m long, so the corridor is 20 - 8 = 12 m longer. Watch out: metre is only one letter, m; do not mix it up with cm.
Langkah 3
Tulis simbol dengan betul
Tulis nombor diikuti simbol unit, contohnya 18 cm atau 2 m.
simbol unit = unit symbol Write the number first, then a space and the unit symbol, such as 18 cm or 2 m. A number on its own does not tell us whether it means centimetres or metres, and those lengths are very different. Example: a string 25 cm long is tied to another piece of 10 cm, giving 25 + 10 = 35 cm. Watch out: the unit goes after the number, so never write the symbol in front.
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Unit yang sesuai untuk panjang sebatang pensel ialah…
panjang sebatang pensel = length of a pencil The question asks which unit suits the length of one pencil. Panjang means length, and a pencil is short. Cross out units that are not for length, then pick what suits short things. Example: two desks, each 1 metre long, placed end to end make 1 + 1 = 2 metres. Watch out: decide whether it is length or mass before looking at the letters.
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Unit yang sesuai untuk panjang bilik darjah ialah…
panjang bilik darjah = 教室的长度 题目问：量整间教室有多长，要用哪个单位。教室是很长的距离。先找量长度的单位，再想用很小的单位，数字会不会大得难读。 例子：一支铅笔长 15 厘米，三支排成一行是 15 + 15 + 15 = 45 厘米。 注意：单位要和东西的大小相配，可以先想想走完教室要跨几大步。
panjang bilik darjah = length of a classroom This question asks for the best unit to measure how long a whole classroom is. A classroom is a long distance. Find the length units, then ask whether a tiny unit would give a huge number. Example: three pencils of 15 centimetres in a row make 15 + 15 + 15 = 45 centimetres. Watch out: match the unit to the size of the room.
Ringkasan
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Kamu telah belajar tentang Kenali Unit Sentimeter dan Meter.
Ingat: sentimeter untuk objek pendek; meter untuk objek panjang; tulis simbol dengan betul.
