Latihan
Latihan tambahan
4 soalan untuk mengukuhkan unit Akal Pintar. Jika salah, baca petunjuk dan cuba lagi.
Berapakah jarak H ke I, dalam m?
求另一段 = cari bahagian yang lain
总距离是整段路,已知的是前面一段,要求的是后面一段,所以用总距离减已知的一段。总距离只有千米时,要借一千米来减米;算完再把千米化成米,加上米数。
例子:5 km − 1 km 630 m = 4 km 1 000 m − 1 km 630 m = 3 km 370 m = 3 370 m。
注意:借了一千米后,千米数要少一。
finding the other part = cari bahagian yang lain
The total is the whole road, the known distance is the first part and the one asked for is the second part, so subtract the known part from the total. When the total has kilometres only, borrow 1 km to subtract the metres; then change the result into metres.
Example: 5 km − 1 km 630 m = 4 km 1 000 m − 1 km 630 m = 3 km 370 m = 3 370 m.
Watch out: after borrowing, the kilometres are one less.
Aida berkata jarak N ke O ialah 5 225 m. Adakah dia betul?
检查别人的说法 = semak kenyataan
要判断说法对不对,自己先算:总距离减去已知的一段。八千米五十米的米只有两位数,五十米不够减二百七十五米,要借一千米。算出来化成米,再和说法里的数比较,一样就对,不一样就不对。
例子:6 km 30 m − 2 km 500 m = 5 km 1 030 m − 2 km 500 m = 3 km 530 m。
注意:借一千米后,米栏是一千加原来的米数。
checking a claim = semak kenyataan
To judge a claim, work it out yourself: total distance minus the known part. In 8 km 50 m the metres have only two digits, and 50 m is not enough to take away 275 m, so borrow 1 km. Change your result into metres and compare it with the claim.
Example: 6 km 30 m − 2 km 500 m = 5 km 1 030 m − 2 km 500 m = 3 km 530 m.
Watch out: after borrowing, the metres column is 1 000 plus the metres already there.
Berapakah jarak X ke Y, dalam m?
中间一段 = bahagian tengah
线段上有四个点,中间一段 = 总距离 − 左边一段 − 右边一段。可以连减,也可以先把左右两段相加再减。米数只有两位数时,化成米要在百位补零,不能读成几百米。
例子:12 km − 4 km 300 m − 2 km 60 m → 7 km 700 m − 2 km 60 m → 5 km 640 m = 5 640 m。
注意:两段已知距离都要减。
the middle part = bahagian tengah
With four points, the middle part = total − left part − right part. Subtract twice, or add the left and right parts first and subtract once. When the metres have only two digits, keep a zero in the hundreds place so it is not read as hundreds of metres.
Example: 12 km − 4 km 300 m − 2 km 60 m → 7 km 700 m − 2 km 60 m → 5 km 640 m = 5 640 m.
Watch out: both known parts must be subtracted.
Berapakah jarak U ke V?
从总距离找一段 = cari satu bahagian daripada jumlah
从 U 到 J 是整段路,V 在中间,所以 U 到 V 等于 U 到 J 减去 V 到 J。米栏三百不够减,要向千米借一千,变成一千三百米,千米少一,再分别相减。答案用千米和米写。
例子:7 km 200 m − 3 km 650 m = 6 km 1 200 m − 3 km 650 m = 3 km 550 m。
注意:不要用小的米数去减大的米数。
finding one part from the total = cari satu bahagian daripada jumlah
U to J is the whole road and V lies between them, so U to V = U to J minus V to J. The 300 m in the metres column is not enough, so borrow 1 km to make 1 300 m, reduce the kilometres by one, then subtract each column. Write the answer in km and m.
Example: 7 km 200 m − 3 km 650 m = 6 km 1 200 m − 3 km 650 m = 3 km 550 m.
Watch out: do not take the smaller metres away from the larger ones instead.
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