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约简 = permudahkan 乘数十五和除数三可以先约简：十五除以三得到一个较小的整数，于是题目变成这个整数乘金额，不必先算很大的积。 例子：9 × RM200 ÷ 3，9 ÷ 3 = 3，所以 3 × RM200 = RM600。 注意：约简后只剩乘法，不要再除一次，也不要漏了除。

simplify = permudahkan The number multiplied by, 15, and the number divided by, 3, can be simplified first: 15 ÷ 3 gives a small whole number, so the question becomes that number × the amount, with no big product to work out. Example: 9 × RM200 ÷ 3: 9 ÷ 3 = 3, so 3 × RM200 = RM600. Watch out: after simplifying only a multiplication is left; do not divide again, and do not forget the division either.

先除后乘 = bahagi dahulu 第一步用长除法把金额除以八，得到一份；第二步乘三，得到三份。算完可以用估计检查：把金额取整，再按同样的次序先除后乘，看看结果是否接近。 例子：RM900 ÷ 3 × 2，先得 RM300，再得 RM600。 注意：除法中间有零时商也要写零，否则一份会算错。

divide first = bahagi dahulu Step 1: long-divide the amount by 8 to get one part. Step 2: multiply by 3. Check with an estimate: round the amount and divide then multiply in the same order to see whether the result is close. Example: RM900 ÷ 3 × 2; first RM300, then RM600. Watch out: when a step in the division gives 0, write the 0 in the answer, or one part will be wrong.

带仙的乘除 = darab dan bahagi dengan sen 先用长除法把带仙的金额除以九，商的小数点要和被除数的小数点对齐；再把商乘四，积也保留两位小数。仙的两位数字要放在正确的位置。 例子：RM18.90 ÷ 9 × 2 = RM2.10 × 2 = RM4.20。 注意：十仙和一仙是不同的数位，写错位置金额就错了。

× and ÷ with sen = darab dan bahagi dengan sen First long-divide the amount with sen by 9, keeping the decimal point of the answer in line with the amount. Then multiply that by 4, keeping two decimal places. Put the two sen digits in the right places. Example: RM18.90 ÷ 9 × 2 = RM2.10 × 2 = RM4.20. Watch out: tens of sen and ones of sen are different places; putting a digit in the wrong one changes the amount.

约简 = permudahkan 四十二和六可以约简，四十二除以六得到一个一位数，题目就变成一位数乘带仙的金额，用竖式乘就行。积要保留两位小数。 例子：36 × RM50 ÷ 9，36 ÷ 9 = 4，所以 4 × RM50 = RM200。 注意：约简以后仍要把仙乘好，仙位写两位。

simplify = permudahkan 42 and 6 simplify: 42 ÷ 6 is a one-digit number, so the question becomes a one-digit number × an amount with sen, done in columns. Keep two decimal places in the answer. Example: 36 × RM50 ÷ 9: 36 ÷ 9 = 4, so 4 × RM50 = RM200. Watch out: after simplifying, still multiply the sen carefully and write two sen digits.

应用题 = masalah 先求十二间课室的总租金：间数乘一间的租金；再把总租金平均分成八期：除以八。也可以先把一间的租金除以八，再乘十二，结果一样。 例子：租 6 间房，每间 RM350，分 4 期付：6 × RM350 ÷ 4 = RM2 100 ÷ 4 = RM525。 注意：只求出总租金还不是答案，题目问的是每一期。

a word problem = masalah First find the total rent for 12 classrooms: the number of rooms × the rent of one. Then split the total into 8 equal instalments: ÷ 8. You can also divide one room's rent by 8 and then × 12; the result is the same. Example: rent 6 rooms at RM350 each, paid in 4 instalments: 6 × RM350 ÷ 4 = RM2 100 ÷ 4 = RM525. Watch out: the total rent is not the answer; the question asks for each instalment.