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persepuluh tolak persepuluh = 十分位相减 两个数都只有一位小数，只要看十分位：6 个十分之一拿走 2 个十分之一，剩几个十分之一？个位都是 0，答案的个位也是 0，再写上小数点。 例子：0.9 − 0.5 = 0.4。 注意：拿走就是减，不要把 6 和 2 加起来。

persepuluh tolak persepuluh = tenths minus tenths Both numbers have only one decimal place, so look at the tenths: take 2 tenths away from 6 tenths and count what is left. The ones are both 0, so the answer has 0 ones and a decimal point. Example: 0.9 − 0.5 = 0.4. Watch out: taking away means subtracting, so do not add the 6 and the 2.

beza panjang = 长度相差 求相差，用长的减短的：0.3 m 比 0.18 m 长。先把 0.3 写成 0.30，小数点对齐。百分位 0 不够减 8，要从十分位借 1，借完十分位记得少 1。 例子：0.4 m − 0.27 m → 0.40 − 0.27 = 0.13 m。 注意：0.3 的 3 在十分位，不能对准 0.18 的 8。

beza panjang = difference in length For a difference, subtract the shorter length from the longer one: 0.3 m is longer than 0.18 m. Write 0.3 as 0.30 and line up the points. The hundredths show 0 − 8, so regroup 1 tenth, and the tenths digit goes down by 1. Example: 0.4 m − 0.27 m → 0.40 − 0.27 = 0.13 m. Watch out: the 3 in 0.3 is tenths, so it must not sit under the 8 of 0.18.

bentuk lazim = 竖式 用竖式从右边的百分位开始减。4 比 9 小，向十分位借 1，百分位变成 14；十分位 8 借走 1 剩 7，再减 5。最后对齐写上小数点。 例子：0.62 − 0.38 → 12 − 8 = 4，5 − 3 = 2 → 0.24。 注意：1.43 是把两个数加起来了，这题要减。

bentuk lazim = column method In the column method, start subtracting from the hundredths on the right. 4 is smaller than 9, so regroup 1 tenth and the hundredths become 14. The tenths 8 becomes 7 before you take away 5. Put the decimal point in line. Example: 0.62 − 0.38 → 12 − 8 = 4, 5 − 3 = 2 → 0.24. Watch out: 1.43 comes from adding, but this question subtracts.

lompat ke kiri = 往左跳 往后跳就是往数线的左边跳，每跳一次 0.1，数就小 0.1。从 0.7 开始，一次一次数出落点，跳满 3 次就停下来。 例子：从 0.9 往左跳 0.1 两次 → 0.8、0.7。 注意：往右跳会变大，那是加法；也不要把 0.7 只减 3 个百分之一。

lompat ke kiri = jump to the left Jumping backwards means moving left on the number line; each jump of 0.1 makes the number 0.1 smaller. Start at 0.7 and say each landing point aloud, stopping after the third jump. Example: from 0.9 jump left by 0.1 twice → 0.8, 0.7. Watch out: moving right makes numbers bigger, and the jumps are tenths, not hundredths.

anu dalam ayat tolak = 减法里的未知数 被减数减去差，就得到被减去的数，所以算 0.67 − 0.25。这一题不需要借位，十分位和百分位各自相减。最后用加法检查：答案 + 0.25 应该等于 0.67。 例子：0.58 − □ = 0.33 → 0.58 − 0.33 = 0.25。 注意：不要把 0.67 和 0.25 加起来。

anu dalam ayat tolak = unknown in a subtraction sentence Take the answer away from the first number to find what was subtracted, so work out 0.67 − 0.25. No regrouping is needed: subtract the tenths and the hundredths separately. Check by adding: your answer + 0.25 should equal 0.67. Example: 0.58 − □ = 0.33 → 0.58 − 0.33 = 0.25. Watch out: adding 0.67 and 0.25 does not find the box.

tulis 0.90 = 写成 0.90 0.9 先补 0 写成 0.90，和 0.36 对齐。百分位 0 − 6 不够减，向十分位借 1，变成 10 − 6；十分位 9 被借走以后剩 8，再减 3。 例子：0.7 − 0.45 → 0.70 − 0.45 = 0.25。 注意：0 − 6 不能写成 6，那是把上下数字倒过来减了。

tulis 0.90 = write it as 0.90 Write 0.9 as 0.90 so it lines up with 0.36. The hundredths show 0 − 6, so regroup 1 tenth to make 10 − 6. The 9 tenths become 8 tenths, and then you take away 3 tenths. Example: 0.7 − 0.45 → 0.70 − 0.45 = 0.25. Watch out: 0 − 6 is not 6; that would be subtracting the top digit from the bottom one.

cari kesilapan = 找错误 先用加法检查 Zul 的答案：把他的答案加上 0.38，看看能不能回到 0.73。回不到，就说明他算错了。重新用竖式一位一位地减，不够减就借位，最后再用加法检查新答案。 例子：0.52 − 0.27 → 12 − 7 = 5，4 − 2 = 2 → 0.25，0.25 + 0.27 = 0.52。 注意：借位后十分位一定要少 1。

cari kesilapan = find the mistake Check Zul's answer by adding it to 0.38 and seeing whether you get back 0.73. If you do not, his answer is wrong. Work it out again in columns, regroup when the top digit is too small, and check the new answer by adding. Example: 0.52 − 0.27 → 12 − 7 = 5, 4 − 2 = 2 → 0.25, and 0.25 + 0.27 = 0.52. Watch out: after regrouping, the tenths digit must drop by 1.