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借位 = kumpul semula 小数点对齐后从十分位减起。上面的数字比下面的小，就向左边一位借 1；借完以后左边那一位少 1，如果它又不够减，就再向更左边借。 例子：13.1 − 4.6 → 十分位 11 − 6 = 5，个位 2 不够减 4，借 1 得 12 − 4 = 8 → 8.5。 注意：借位以后，左边那一位一定要记得减 1。

borrowing = kumpul semula Line up the points and start at the tenths. When the top digit is smaller, borrow 1 from the place on the left; that place is then 1 less, and if it is now too small, borrow again from further left. Example: 13.1 − 4.6: tenths 11 − 6 = 5; ones 2 is less than 4, so borrow, 12 − 4 = 8, giving 8.5. Watch out: after borrowing, always take 1 off the place on the left.

补零 = tulis sifar 被减数只有一位小数，减数有两位。在被减数后面补 0，百分位才有数字可以减；然后从百分位开始，不够减就借位。 例子：5.4 − 2.15 = 5.40 − 2.15 = 3.25。 注意：不补 0 就直接把减数的百分位数字抄下来，是很常见的错误。

fill a zero = tulis sifar The first number has one decimal place and the second has two. Put a zero after the first number so the hundredths place has a digit to subtract from, then start at the hundredths and borrow when needed. Example: 5.4 − 2.15 = 5.40 − 2.15 = 3.25. Watch out: copying the hundredths digit straight down without writing the zero is a common mistake.

应用题 = masalah 水被用了两次，所以要从原来的水量里减两次（也可以先把两次用掉的加起来，再一次减掉）。整数要补上小数点和 0，每一步都对齐小数点。 例子：10 − 2.5 − 1.25 = 7.5 − 1.25 = 6.25 升。 注意：只减一次就停下来是不够的；答案要写单位 ℓ。

a word problem = masalah Water is used twice, so subtract twice from the starting amount (or add the two amounts used and subtract once). Give the whole number a decimal point and zeros, and line up the points at each step. Example: 10 − 2.5 − 1.25 = 7.5 − 1.25 = 6.25 litres. Watch out: stopping after one subtraction is not enough, and write the unit ℓ.

求减数 = cari nombor yang ditolak 被减去的数 = 原来的数 − 剩下的数。先补 0 让两个数的小数位数一样，再从右边减起，注意连续借位。最后用原来的数减去你的答案，看是不是剩下题目的数。 例子：8.5 − □ = 3.2 → 8.5 − 3.2 = 5.3；检查 8.5 − 5.3 = 3.2。 注意：求减数也是用减法，不是把两个数加起来。

find the number taken away = cari nombor yang ditolak The number taken away = the starting number − what is left. Fill zeros so both have the same decimal places, subtract from the right and watch for repeated borrowing. Check by subtracting your answer from the starting number. Example: 8.5 − □ = 3.2: 8.5 − 3.2 = 5.3; check 8.5 − 5.3 = 3.2. Watch out: the number taken away is also found by subtracting, not by adding the two numbers.

三位小数 = tiga tempat perpuluhan 被减数补两个 0 变成三位小数。千分位不够减时，旁边的百分位也是 0，就要先向十分位借，百分位变成 10，再借 1 给千分位，百分位剩 9。一位一位慢慢借。 例子：2.5 − 0.125 = 2.500 − 0.125 = 2.375。 注意：减数的小数点前面是 0，个位也要照样对齐相减；不要把两个数的位置调换来减。

three decimal places = tiga tempat perpuluhan Add two zeros so the first number has three decimal places. When the thousandths is too small and the hundredths is also 0, borrow from the tenths first so the hundredths becomes 10, then lend 1 to the thousandths, leaving 9. Borrow one place at a time. Example: 2.5 − 0.125 = 2.500 − 0.125 = 2.375. Watch out: line up the ones even when the number taken away starts with 0, and never swap the numbers round.