Latihan
Latihan tambahan
3 soalan untuk mengukuhkan unit Akal Pintar. Jika salah, baca petunjuk dan cuba lagi.
Diberi 9 600 ÷ 8 = 1 200. Berapakah 9 600 ÷ 16?
除数变两倍 = pembahagi 2 kali ganda
同样多的东西,分给两倍的组数,每组就只剩原来的一半。所以新除数是旧除数的两倍时,新商就是已知商的一半。算好后用乘法检查。
例子:已知 700 ÷ 7 = 100,那么 700 ÷ 14 = 50。
注意:先想清楚除数是变大还是变小,再决定商要乘还是要除,最后用乘法检查。
the divisor doubles = pembahagi 2 kali ganda
The same amount shared among twice as many groups leaves each group only half as much. So when the new divisor is double the old one, halve the known quotient to get the new one. Check by multiplying.
Example: since 700 ÷ 7 = 100, 700 ÷ 14 = 50.
Watch out: first decide whether the divisor grew or shrank, then decide whether to multiply or divide the answer, and check with multiplication.
Diberi 7 200 ÷ 24 = 300. Berapakah 7 200 ÷ 12?
除数变一半 = pembahagi separuh
新除数只有旧除数的一半,等于把同样多的东西分成比较少的组,每组就变多,商变成已知商的两倍。
例子:已知 800 ÷ 40 = 20,那么 800 ÷ 20 = 40。
注意:除数变小,商反而变大,这一点和直觉相反,要特别小心。
the divisor is halved = pembahagi separuh
The new divisor is half the old one, which means sharing the same amount into fewer groups, so each group gets more and the known quotient must be doubled.
Example: since 800 ÷ 40 = 20, 800 ÷ 20 = 40.
Watch out: a smaller divisor gives a bigger answer, which can feel surprising, so take care.
Mengapakah 18 360 ÷ 36 lebih kecil daripada 18 360 ÷ 9?
分的份数 = bilangan kumpulan
想一想除法的意思:被除数是全部的东西,除数是分成几组,商是每组有多少。两个算式的被除数一样,只有除数不同。分成的组越多,每组会怎样?用这个意思去判断每个理由对不对。
例子:12 颗糖分给 3 人,每人 4 颗;分给 6 人,每人只有 2 颗。
注意:先确定哪一个数改变了,哪一个数没有改变。
the number of groups = bilangan kumpulan
Think about what division means: the number being divided is the whole amount, the divisor is the number of groups and the quotient is how much each group gets. Both sentences divide the same amount; only the divisor differs. What happens to each group when there are more groups? Use this to judge each reason.
Example: 12 sweets for 3 people is 4 each; for 6 people it is only 2 each.
Watch out: first decide which number has changed and which has not.
Tahniah! Kamu telah menyelesaikan latihan.
Kembali ke Nombor dan Operasi