Latihan
Latihan tambahan
6 soalan untuk mengukuhkan unit Selesaikan Masalah. Jika salah, baca petunjuk dan cuba lagi.
Jualan tiket pesta pada hari Sabtu ialah RM 1 850. Jualan pada hari Ahad ialah RM 475 lebih daripada hari Sabtu. Berapakah jumlah jualan tiket kedua-dua hari?
多 RM 475 = RM 475 lebih
第一步:星期日比星期六多 475,所以星期日是 1 850 + 475 = 2 325。第二步:两天的总额 1 850 + 2 325 = 4 175。RM 2 325 只是星期日的,RM 3 700 是把星期六算了两次。检查:4 175 − 2 325 = 1 850。
例子:第一天 RM 300,第二天多 RM 50 即 RM 350,两天 RM 650。
注意:“lebih”表示第二个数要先加出来,再求总额。
RM 475 more = RM 475 lebih
Step one: Sunday is 475 more than Saturday, so Sunday is 1 850 + 475 = 2 325. Step two: the two days together are 1 850 + 2 325 = 4 175. RM 2 325 is Sunday alone, and RM 3 700 counts Saturday twice. Check: 4 175 − 2 325 = 1 850.
Example: day one RM 300, day two RM 50 more, so RM 350, and both days RM 650.
Watch out: lebih means the second amount must be worked out first, then the total.
Wang hadiah pertandingan RM 3 600 dikongsi sama banyak oleh 4 orang pemenang. Setiap pemenang menderma RM 150. Berapakah baki wang setiap pemenang?
每人余额 = baki setiap orang
第一步:3 600 ÷ 4 = 900,每人分到 RM 900。第二步:每人捐 150,余额 900 − 150 = 750。RM 900 是还没捐的数;RM 3 450 是从总数减 150,没有先平分。检查:750 + 150 = 900,900 × 4 = 3 600。
例子:RM 800 平分 4 人各 200,各捐 40,各剩 160。
注意:“dikongsi sama banyak”先除,“menderma”再减。
balance per person = baki setiap orang
Step one: 3 600 ÷ 4 = 900, so each winner gets RM 900. Step two: each gives 150, leaving 900 − 150 = 750. RM 900 is before the donation, and RM 3 450 subtracts 150 from the whole without sharing first. Check: 750 + 150 = 900 and 900 × 4 = 3 600.
Example: RM 800 shared by 4 is 200 each; giving 40 each leaves 160 each.
Watch out: dikongsi sama banyak means divide first; menderma means subtract after.
Simpanan Aina ialah RM 420. Nenek memberinya RM 180 lagi. Aina mahu simpanannya mencapai RM 1 000. Berapakah lagi yang perlu disimpan?
储蓄目标 = sasaran simpanan;还差 = berapa lagi
第一步:现在的储蓄 420 + 180 = 600。第二步:目标 1 000 减现在的 600 = 400,还要再存 RM 400。RM 580 是 1 000 − 420,忘了奶奶给的;RM 600 是现在的储蓄,不是还差的。检查:600 + 400 = 1 000。
例子:有 RM 50,再得 RM 20,目标 RM 100,还差 RM 30。
注意:先把现在有的全部加起来,再和目标比。
savings target = sasaran simpanan; how much more = berapa lagi
Step one: savings now are 420 + 180 = 600. Step two: target 1 000 minus the 600 she has gives 400, so RM 400 more is needed. RM 580 is 1 000 − 420, forgetting grandmother's gift, and RM 600 is what she has, not what is missing. Check: 600 + 400 = 1 000.
Example: having RM 50, receiving RM 20, with a target of RM 100, leaves RM 30 to go.
Watch out: add up everything she has first, then compare with the target.
Upah RM 2 400 dikongsi sama banyak oleh 8 orang pekerja. Seorang pekerja membelanjakan RM 120 daripada upahnya. Berapakah baki upah pekerja itu?
平分工钱 = kongsi upah sama banyak
第一步:2 400 ÷ 8 = 300,每个工人 RM 300。第二步:这个工人花了 120,剩 300 − 120 = 180。RM 300 是还没花的工钱;RM 285 是 2 400 − 120 再除以 8,但花钱的只有一个工人,不能从总数减。检查:180 + 120 = 300,300 × 8 = 2 400。
例子:RM 500 平分 5 人各 100,一人花 30 剩 70。
注意:“seorang pekerja”指一个人,只从他自己的份里减。
sharing wages equally = kongsi upah sama banyak
Step one: 2 400 ÷ 8 = 300, so each worker gets RM 300. Step two: this worker spends 120, leaving 300 − 120 = 180. RM 300 is the wage before spending, and RM 285 comes from 2 400 − 120 divided by 8, but only one worker spent money, so it cannot be taken from the whole. Check: 180 + 120 = 300 and 300 × 8 = 2 400.
Example: RM 500 shared by 5 is 100 each; one spends 30 and keeps 70.
Watch out: seorang pekerja means one person, so subtract from his share only.
Puan Hana ada RM 1 000. Dia membeli sebuah mesin jahit RM 589 dan kain RM 136. Berapakah baki wangnya?
买两样的余额 = baki selepas dua barang
第一步:缝纫机加布,589 + 136 = 725。第二步:1 000 − 725 = 275。RM 411 是只减了缝纫机;RM 725 是花掉的总数,不是剩下的。检查:275 + 725 = 1 000。
例子:有 RM 200,买 RM 88 和 RM 45,余额 200 − 133 = RM 67。
注意:减法时 1 000 − 725 要借位,个位 0 − 5 要向十位借。
balance after two items = baki selepas dua barang
Step one: sewing machine plus cloth, 589 + 136 = 725. Step two: 1 000 − 725 = 275. RM 411 subtracts only the machine, and RM 725 is the total spent, not the amount left. Check: 275 + 725 = 1 000.
Example: with RM 200, buying RM 88 and RM 45 leaves 200 − 133 = RM 67.
Watch out: 1 000 − 725 needs regrouping, because 0 − 5 in the ones place must borrow from the tens.
Kutipan derma pada hari pertama ialah RM 2 640. Kutipan pada hari kedua ialah RM 380 kurang daripada hari pertama. Berapakah jumlah kutipan derma kedua-dua hari?
少 RM 380 = RM 380 kurang
第一步:第二天比第一天少 380,所以第二天是 2 640 − 380 = 2 260。第二步:两天总额 2 640 + 2 260 = 4 900。RM 2 260 只是第二天的;RM 5 660 是把 380 加上去而不是减。检查:4 900 − 2 640 = 2 260。
例子:第一天 RM 500,第二天少 RM 120 即 RM 380,两天 RM 880。
注意:“kurang”是少,第二个数要用减法求出来,不是把 RM 380 当成第二天的数。
RM 380 less = RM 380 kurang
Step one: day two is 380 less than day one, so day two is 2 640 − 380 = 2 260. Step two: both days together are 2 640 + 2 260 = 4 900. RM 2 260 is day two alone, and RM 5 660 adds the 380 instead of subtracting. Check: 4 900 − 2 640 = 2 260.
Example: day one RM 500, day two RM 120 less, so RM 380, and both days RM 880.
Watch out: kurang means less, so the second amount is found by subtracting; RM 380 itself is not the day-two amount.
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