Darab Ukuran Panjang

先化成毫米再乘 = tukar kepada mm, kemudian darab 每条彩带十二厘米四毫米，先化成毫米：十二乘十是一百二十，加四等于一百二十四毫米。八条一样长，就用一百二十四乘八，个位四乘八得三十二，写二进三；十位二乘八得十六，加三是十九，写九进一；百位一乘八得八，加一是九。 例子：6 × 4 cm 3 mm = 6 × 43 mm = 258 mm。 注意：化毫米以后再乘，乘的是整个毫米数。

change to millimetres, then multiply = tukar kepada mm, kemudian darab Each strip is 12 cm 4 mm; in millimetres that is 12 × 10 = 120, plus 4, making 124 mm. There are 8 equal strips, so work out 124 × 8 in a column: 4 × 8 = 32, write 2 carry 3; 2 × 8 = 16, plus 3 is 19, write 9 carry 1; 1 × 8 = 8, plus 1 is 9. Example: 6 × 4 cm 3 mm = 6 × 43 mm = 258 mm. Watch out: after changing to millimetres, multiply the whole number of millimetres.

分栏相乘 = darab mengikut lajur 毫米栏：四乘八得三十二毫米；厘米栏：十二乘八得九十六厘米。三十二毫米里有三个十毫米，可以换成三厘米，毫米栏留下二，厘米栏九十六加三等于九十九。九十九厘米二毫米再化成毫米，和方法一的答案一样。 例子：4 × 5 cm 7 mm = 20 cm 28 mm = 22 cm 8 mm。 注意：毫米的积超过十时，可能要进好几个厘米，不一定只进一。

multiplying by unit columns = darab mengikut lajur Millimetres column: 4 × 8 = 32 mm; centimetres column: 12 × 8 = 96 cm. 32 mm hold three tens, so they become 3 cm and 2 mm stay; 96 + 3 = 99 cm. Changing 99 cm 2 mm into millimetres gives the same answer as Way 1. Example: 4 × 5 cm 7 mm = 20 cm 28 mm = 22 cm 8 mm. Watch out: when the millimetres product is large, several centimetres may carry, not just one.

千米米乘法 = darab km dan m 每次跑三千米二百七十五米，跑六次，就用乘法。米栏：二百七十五乘六等于一千六百五十米，满一千米，拿出 1 000 m 换成 1 km，米栏剩六百五十。千米栏：三乘六等于十八，加上换来的一，等于十九千米。 例子：3 × 4 km 500 m = 12 km 1 500 m = 13 km 500 m。 注意：米的积要满一千才进一千米。

multiplying km and m = darab km dan m Each run is 3 km 275 m and there are 6 runs, so multiply. Metres: 275 × 6 = 1 650 m, which passes 1 000, so 1 000 m become 1 km and 650 m stay. Kilometres: 3 × 6 = 18, plus the carried 1 makes 19 km. Example: 3 × 4 km 500 m = 12 km 1 500 m = 13 km 500 m. Watch out: the metres regroup only when they reach 1 000.

往返 = ulang-alik 往返就是去一次、回来一次，走了两趟同样的路，所以把单程距离乘二。米栏：四百六十乘二等于九百二十米，没有满一千，不用进位；千米栏：一乘二等于二。用米表示：2 km = 2 000 m，加九百二十米。 例子：往返 2 km 350 m 的路 → 2 × 2 km 350 m = 4 km 700 m = 4 700 m。 注意：只算单程会少掉一半路程。

a round trip = ulang-alik A round trip means going once and coming back once, the same road twice, so multiply the one-way distance by 2. Metres: 460 × 2 = 920 m, below 1 000, so no regrouping; kilometres: 1 × 2 = 2. In metres: 2 km is 2 000 m, plus 920 m. Example: a round trip on a 2 km 350 m road → 2 × 2 km 350 m = 4 km 700 m = 4 700 m. Watch out: counting only one way gives half the distance.

乘以一位数 = darab dengan nombor satu digit 分栏乘：毫米栏乘以这个数，得到的毫米如果满十，要看里面有几个十，就换成几厘米送到厘米栏，毫米栏留下个位；厘米栏乘以这个数，再加上送来的厘米。也可以先化成毫米再乘，最后换回厘米和毫米。 例子：6 × 3 cm 9 mm = 18 cm 54 mm = 23 cm 4 mm。 注意：毫米的积有几个十，就要进几厘米。

multiplying by a one-digit number = darab dengan nombor satu digit Multiply each unit column. If the millimetres product reaches 10 or more, count its tens, move that many centimetres into the centimetres column and keep the ones in the millimetres column. Multiply the centimetres and add the carried centimetres. You may also change to millimetres first, multiply, and change back. Example: 6 × 3 cm 9 mm = 18 cm 54 mm = 23 cm 4 mm. Watch out: carry as many centimetres as there are tens in the millimetres product.

乘积化成米 = hasil darab dalam m 米栏乘以这个数，积满一千就进一千米；千米栏乘以这个数，加上进来的千米。最后把千米乘一千，加上米数，就是用米表示的答案。也可以一开始把距离化成米，再乘。 例子：3 × 1 km 640 m = 3 km 1 920 m = 4 km 920 m = 4 920 m。 注意：写成米时要看清每一位，零不能随便加或漏。

the product in metres = hasil darab dalam m Multiply the metres; if the product reaches 1 000, carry 1 km. Multiply the kilometres and add any carried kilometres. Then multiply the kilometres by 1 000 and add the metres to write the answer in metres. You could also change the distance into metres first and multiply. Example: 3 × 1 km 640 m = 3 km 1 920 m = 4 km 920 m = 4 920 m. Watch out: when writing in metres, check each place so that no zero is added or lost.