Latihan tambahan

按层数算体积 = isi padu mengikut lapisan 这个立体是由一样大的小正方体堆成的。先算一层：前面几个乘后面几排；再乘层数。看不见的小正方体也要算。 例子：一层 2 × 5 个，共 2 层，体积 = 20 unit³。 注意：数表面看到的小方块个数，不等于体积。

volume by layers = isi padu mengikut lapisan This solid is built from equal small cubes. Work out one layer (the number along the front times the rows going back), then multiply by the number of layers, including the hidden cubes. Example: 2 layers of 2 × 5 cubes give 20 unit³. Watch out: the number of squares you can see on the outside is not the volume.

正方体的体积 = isi padu kubus 正方体的长、宽、高都等于边长，所以体积是边长连乘三次，单位是立方厘米。 例子：边长 8 m 的正方体水塔，体积 = 8 × 8 × 8 = 512 m³。 注意：边长乘边长只是一个面的面积，还要再乘一次。

volume of a cube = isi padu kubus The length, width and height of a cube all equal the side, so multiply the side by itself three times, in cubic centimetres. Example: a cube-shaped water tower with 8 m sides has a volume of 8 × 8 × 8 = 512 m³. Watch out: side × side is only the area of one face; multiply once more.

整十数相乘 = darab nombor puluh 体积 = 长 × 宽 × 高。三个数都是整十，可以先把不是零的数字相乘，再数一数一共有几个零，把零补在后面。 例子：20 cm × 10 cm × 10 cm → 2 × 1 × 1 = 2，补三个零，得 2 000 cm³。 注意：零的个数要数清楚，少写或多写一个零，答案就差十倍。

multiplying tens = darab nombor puluh Volume = length × width × height. All three numbers are tens, so multiply the non-zero digits first, then count the zeros and write them at the end. Example: 20 cm × 10 cm × 10 cm → 2 × 1 × 1 = 2, add three zeros: 2 000 cm³. Watch out: count the zeros carefully; one zero too many or too few makes the answer ten times wrong.

房间的体积 = isi padu bilik 房间像一个长方体，体积 = 长 × 宽 × 高，三个数都用米，单位是立方米 m³。先乘两个，再乘剩下的那个数。 例子：4 m × 2 m × 3 m 的储物柜间，体积 = 24 m³。 注意：三个数相加得到的不是体积。

volume of a room = isi padu bilik A room is like a cuboid, so its volume is length × width × height. All are in metres, so the unit is m³. Multiply two numbers, then the third. Example: a 4 m × 2 m × 3 m store room has a volume of 24 m³. Watch out: adding the three numbers does not give the volume.

已知底面积 = luas tapak diberi 底面积已经告诉你了，它就是长乘宽的结果。体积 = 底面积 × 高，单位从平方厘米变成立方厘米。 例子：底面积 15 cm²、高 6 cm 的盒子，体积 = 90 cm³。 注意：把底面积和高相加不对，单位也要写 cm³。

base area given = luas tapak diberi The base area is given; it is already length × width. Volume = base area × height, and the unit changes from cm² to cm³. Example: a box with a base area of 15 cm² and a height of 6 cm has a volume of 90 cm³. Watch out: adding the base area and height is wrong, and the unit must be cm³.