Latihan tambahan

先加千克再化克 = tambah kg, tukar kepada g 两个千克数先相加，得到的千克数乘一千化成克；然后减去克数。被减数的后三位都是零，个位不够减时要一路向前借，零借位后变成九，最前面借出的那一位要减一。 例子：20 kg + 5 kg − 3 640 g = 25 000 g − 3 640 g = 21 360 g。 注意：每借一次，都要记得前一位少一。

add the kilograms, then change to grams = tambah kg, tukar kepada g Add the two kilogram amounts, multiply the total by 1 000 to change it into grams, then subtract the grams. The last three digits of the top number are zeros, so borrowing travels across them; each zero becomes 9 and the digit that lent is one less. Example: 20 kg + 5 kg − 3 640 g = 25 000 g − 3 640 g = 21 360 g. Watch out: every time you borrow, the digit to the left goes down by one.

千克克化成克 = tukar kg dan g kepada g 千克乘一千，再加上克。克的部分要写满百位、十位、个位三格：只有两位数的克，百位要写零。所以先想一想这个克数是几位数，再决定要不要补零。 例子：8 kg 75 g = 8 000 g + 75 g = 8 075 g。 注意：零写在哪一位，数值就完全不同。

writing kg and g in grams = tukar kg dan g kepada g Multiply the kilograms by 1 000 and add the grams. The grams must fill three places, hundreds, tens and ones, so a two-digit number of grams needs a zero in the hundreds place. Think about how many digits the grams have before deciding whether a zero is needed. Example: 8 kg 75 g = 8 000 g + 75 g = 8 075 g. Watch out: where the zero goes changes the value completely.

三项加减 = tambah dan tolak tiga jisim 从左到右算：先加，再减。二千三百七十五克可以写成二千克三百七十五克，放进分栏里；也可以把所有质量都化成克，算完再换回几千克几克。每一步都检查克栏是否要进位或借位。 例子：500 g + 6 kg 820 g − 1 450 g = 7 kg 320 g − 1 kg 450 g = 5 kg 870 g。 注意：答案要写成几千克几克，克要少于一千。

three masses with + and − = tambah dan tolak tiga jisim Work from left to right: add first, then subtract. The 2 375 g can be written as 2 kg 375 g to fit the columns, or change every mass into grams and change back at the end. In each step check whether the grams column needs regrouping. Example: 500 g + 6 kg 820 g − 1 450 g = 7 kg 320 g − 1 kg 450 g = 5 kg 870 g. Watch out: write the answer in kg and g, with fewer than 1 000 grams.

放进去和拿出来 = masukkan dan keluarkan 放进去质量增加，用加法；拿出来质量减少，用减法。按事情发生的顺序，先加上字典的质量，再减去拿出的书。加的时候克栏满一千要进一千克，减的时候克不够要借一千克。 例子：10 kg 200 g + 900 g − 3 kg 500 g = 11 kg 100 g − 3 kg 500 g = 7 kg 600 g。 注意：先看清楚是放进还是拿出。

putting in and taking out = masukkan dan keluarkan Putting something in makes the mass larger, so add; taking something out makes it smaller, so subtract. Follow the order of events: add the dictionary first, then subtract the books removed. When adding, regroup 1 000 g as 1 kg; when subtracting, borrow 1 kg if the grams are not enough. Example: 10 kg 200 g + 900 g − 3 kg 500 g = 11 kg 100 g − 3 kg 500 g = 7 kg 600 g. Watch out: read carefully whether things go in or come out.

读懂“从和里减去” = tolak daripada hasil tambah “hasil tambah B dan C”是 B 和 C 相加得到的和；“Tolak A daripada …”是从后面那个数里减去 A。所以句子里先出现的 A 反而是减数，要放在减号后面。先算和，再相减，克栏留意进位和借位。 例子：Tolak 1 kg 200 g daripada hasil tambah 3 kg 400 g dan 500 g → 3 kg 400 g + 500 g = 3 kg 900 g → 3 kg 900 g − 1 kg 200 g = 2 kg 700 g。 注意：列式以前，先分清哪个是被减数，哪个是减数。

reading 'subtract from the sum' = tolak daripada hasil tambah 'hasil tambah B dan C' is the sum of B and C; 'Tolak A daripada …' means take A away from that number. So A, which is said first, is the number being subtracted and goes after the minus sign. Find the sum, then subtract, regrouping grams when needed. Example: Tolak 1 kg 200 g daripada hasil tambah 3 kg 400 g dan 500 g → 3 kg 400 g + 500 g = 3 kg 900 g → 3 kg 900 g − 1 kg 200 g = 2 kg 700 g. Watch out: before writing the calculation, decide which mass is taken away and which it is taken from.