Tentukan sama ada soalan meminta jumlah, beza, harga beberapa barang atau bahagian sama banyak.
Langkah 1
Pilih operasi
Tentukan sama ada soalan meminta jumlah, beza, harga beberapa barang atau bahagian sama banyak.
+ · − · × · ÷
Pilih operasi = 选择运算 先看题目要什么：要总数用加法，要差额用减法，几样同价的东西用乘法，平均分用除法。决定运算后才计算。例子：一瓶水 RM2，买5瓶，价钱相同，5 × RM2 = RM10。注意：看到两个数不要马上相加，先想题目问的是什么。
Pilih operasi = choose the operation First decide what the question wants: a total means add, a difference means subtract, several items at one price means multiply, and equal sharing means divide. Only then calculate. Example: water costs RM2 a bottle and you buy 5, so 5 × RM2 = RM10. Watch out: do not add two numbers just because you see them; ask what is being asked first.
Langkah 2
Harga berulang guna darab
Jika beberapa barang mempunyai harga yang sama, darab bilangan barang dengan harga sebuah.
bilangan × harga sebuah
Harga berulang guna darab = 重复价钱用乘法 几样东西每样价钱相同，就用件数乘一件的价钱。这样比一个个相加快，也不容易漏掉。例子：买6个面包，每个 RM3，6 × RM3 = RM18。注意：要乘的是一件的价钱，不是已经算好的总价。
Harga berulang guna darab = repeated price means multiply If several items share one price, multiply the number of items by the price of one. This is faster than adding each item, and nothing gets missed. Example: six buns at RM3 each cost 6 × RM3 = RM18. Watch out: multiply by the price of one item, not by a total that has already been worked out.
Langkah 3
Kongsi sama banyak guna bahagi
Jika jumlah wang dikongsi sama banyak, bahagi jumlah wang dengan bilangan penerima atau kumpulan.
jumlah ÷ bilangan kumpulan
Kongsi sama banyak guna bahagi = 平分用除法 一笔钱平均分给几个人或几组，就用总钱数除以人数或组数，得到每份多少。例子：RM24 平分给3组，RM24 ÷ 3 = RM8，检查 RM8 × 3 = RM24。注意：如果题目问的是总共多少，就不是除法，要先看清楚问题。
Kongsi sama banyak guna bahagi = equal sharing means divide When money is shared equally among people or groups, divide the total by the number of groups to find one share. Example: RM24 shared by 3 groups is RM24 ÷ 3 = RM8, and RM8 × 3 = RM24 checks it. Watch out: if the question asks for a total instead of a share, division is the wrong choice.
Semak cepat · Soalan 1 / 2
Cuba sendiri
Pilih jawapan. Jika belum tepat, baca petunjuk dan cuba lagi.
RM16.20 + RM13.80 = __
RM16.20 + RM13.80 = 带仙的加法 题目要把两笔带仙的钱相加。先加仙：20 sen + 80 sen = 100 sen，刚好换成 RM1；再加令吉，别忘了加上进位的 RM1。例子：RM11.40 + RM7.60 = RM19.00。注意：仙加起来满100，小数点后要写00，不是写100。
RM16.20 + RM13.80 = adding with sen The question adds two amounts that both have sen. Add the sen first: 20 sen + 80 sen = 100 sen, which becomes exactly RM1. Then add the ringgit and include the carried RM1. Example: RM11.40 + RM7.60 = RM19.00. Watch out: when the sen make 100, write 00 after the point, never 100.
Semak cepat · Soalan 2 / 2
Cuba sendiri
Pilih jawapan. Jika belum tepat, baca petunjuk dan cuba lagi.
RM90 − RM47 = subtracting ringgit The ones digit 0 is smaller than 7, so borrow from the tens: 10 − 7 = 3. The tens drop from 9 to 8, and 8 − 4 = 4. Add your answer to RM47 to see if you get RM90 again. Example: RM70 − RM38 = RM32. Watch out: after borrowing, subtract from 8 in the tens, not from 9.
Ringkasan
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Ingat: pilih operasi; harga berulang guna darab; kongsi sama banyak guna bahagi.
