Latihan tambahan

厘米毫米除以数 = bahagi cm dan mm 先除厘米，商写在厘米；看看余下几厘米，每一厘米是十毫米，化成毫米后加上原来的毫米，再除以同一个除数，商写在毫米。答案写成几厘米几毫米。 例子：27 cm 3 mm ÷ 7 → 3 cm 余 6 cm → 63 mm ÷ 7 = 9 mm → 3 cm 9 mm。 注意：余下的厘米要乘十，不是直接写在毫米前面。

dividing cm and mm = bahagi cm dan mm Divide the centimetres and write that quotient as centimetres. See how many centimetres are left; each is 10 mm, so change them into millimetres, add the millimetres already there and divide by the same number to get the millimetres. Write the answer in cm and mm. Example: 27 cm 3 mm ÷ 7 → 3 cm remainder 6 cm → 63 mm ÷ 7 = 9 mm → 3 cm 9 mm. Watch out: multiply the leftover centimetres by ten; do not just write them in front of the millimetres.

千米米除以四 = bahagi km dan m dengan 4 千米除以四，商写在千米，余下的千米化成米（乘一千），再加上原来的米数，一起除以四。 例子：6 km 200 m ÷ 4 → 1 km 余 2 km → 2 200 m ÷ 4 = 550 m → 1 km 550 m。 注意：化出来的米和原来的米要先相加。

dividing km and m by 4 = bahagi km dan m dengan 4 Divide the kilometres by 4 and write that quotient as kilometres. Change the leftover kilometres into metres (× 1 000), add the metres already there, and divide the total by 4. Example: 6 km 200 m ÷ 4 → 1 km remainder 2 km → 2 200 m ÷ 4 = 550 m → 1 km 550 m. Watch out: add the changed metres to the metres already there first.

正五边形边长 = sisi pentagon sekata 正五边形有五条一样长的边，边长 = 铁丝总长 ÷ 5。先除厘米，如果除不尽，余下的厘米化成毫米，加上原来的毫米再除以五。也可以先把全长化成毫米，再用长除法。 例子：正五边形周长 43 cm 5 mm → 435 mm ÷ 5 = 87 mm = 8 cm 7 mm。 注意：除数是边的数目，要先数清楚。

one side of a regular pentagon = sisi pentagon sekata A regular pentagon has 5 equal sides, so one side = total wire ÷ 5. Divide the centimetres first; if something is left, change it into millimetres, add the millimetres already there and divide by 5. Or change the whole length into millimetres and use long division. Example: a regular pentagon with perimeter 43 cm 5 mm → 435 mm ÷ 5 = 87 mm = 8 cm 7 mm. Watch out: the divisor is the number of sides, so count them first.

千米除以数化成米 = bahagi km, jawapan dalam m 题目要米，可以先把千米化成米：千米数乘一千，然后用长除法除以除数，商就是米。也可以先除千米，余下的千米化成米再除，最后把千米化成米加起来。 例子：13 km ÷ 4 = 13 000 m ÷ 4 = 3 250 m。 注意：余数是千米，不能直接当成米写在后面。

kilometres divided, answer in metres = bahagi km, jawapan dalam m The question wants metres, so you can change the kilometres into metres first (× 1 000) and use long division; the quotient is in metres. Or divide the kilometres, change the leftover kilometres into metres, divide again, and then combine everything in metres. Example: 13 km ÷ 4 = 13 000 m ÷ 4 = 3 250 m. Watch out: the remainder is kilometres and cannot be written straight after the quotient as metres.

毫米除以数化成厘米毫米 = bahagi mm, jawapan dalam cm dan mm 只有毫米的长度除以一位数，先用长除法算出每一份有几毫米。题目要厘米和毫米，再把这个毫米数换算：每十毫米是一厘米，十位以上的数是厘米，个位的数是毫米。 例子：312 mm ÷ 4 = 78 mm = 7 cm 8 mm。 注意：除出来的商单位还是毫米，换算以后才能写厘米。

millimetres divided, answer in cm and mm = bahagi mm, jawapan dalam cm dan mm Divide the length in millimetres by the one-digit number with long division to find how many millimetres are in each part. The question wants centimetres and millimetres, so change that number: every 10 mm is 1 cm, the tens and above give centimetres and the ones digit gives millimetres. Example: 312 mm ÷ 4 = 78 mm = 7 cm 8 mm. Watch out: the quotient is still in millimetres until you change it.