← Unit 107
Latihan · Selesaikan Masalah
Latihan

Latihan tambahan

6 soalan untuk mengukuhkan unit Selesaikan Masalah. Jika salah, baca petunjuk dan cuba lagi.

Soalan 1 / 6Latihan tambahan
Ayah ada seutas dawai 5 m. Dia memotong 3 keping dawai, setiap satu 1 m 20 cm. Berapakah baki dawai itu?
5 m
1 m 20 cm
1 m 20 cm
1 m 20 cm
baki ?
剪几段后剩下 = baki selepas dipotong;铁线 = dawai 第一步求剪掉的总长:1 m 20 cm × 3 = 360 cm = 3 m 60 cm。第二步求剩下:5 m = 500 cm,500 − 360 = 140 cm = 1 m 40 cm。3 m 80 cm 是只减了一段;3 m 60 cm 是剪掉的长度,不是剩下的。检查:1 m 40 cm + 3 m 60 cm = 5 m。 例子:4 m 的绳子剪 2 段各 1 m 50 cm,剩 1 m。 注意:剪了 3 段,就要减 3 段的总长。
what is left after cutting = baki selepas dipotong; wire = dawai Step one finds the total cut off: 1 m 20 cm × 3 = 360 cm = 3 m 60 cm. Step two finds what is left: 5 m = 500 cm, and 500 − 360 = 140 cm = 1 m 40 cm. 3 m 80 cm takes away only one piece, and 3 m 60 cm is the length cut off, not the length left. Check: 1 m 40 cm + 3 m 60 cm = 5 m. Example: a 4 m rope with 2 pieces of 1 m 50 cm cut off has 1 m left. Watch out: three pieces were cut, so subtract the length of all three.
Soalan 2 / 6Latihan tambahan
Panjang meja guru 1 m 50 cm. Meja murid 65 cm lebih pendek daripada meja guru. Berapakah jumlah panjang kedua-dua meja?
比较短的两步题 = masalah lebih pendek;桌子 = meja 第一步求学生桌:比老师桌短 65 cm,1 m 50 cm = 150 cm,150 − 65 = 85 cm。第二步求总长:150 + 85 = 235 cm = 2 m 35 cm。85 cm 只是学生桌;3 m 65 cm 是把“短”当成“长”,学生桌变成 2 m 15 cm 才加的。 例子:门高 2 m,窗比门矮 80 cm,窗高 1 m 20 cm,两者共 3 m 20 cm。 注意:答案超过 100 cm 时要写成 m 和 cm。
a two-step shorter-than problem = masalah lebih pendek; table = meja Step one finds the pupil's table: it is 65 cm shorter than the teacher's, 1 m 50 cm = 150 cm, and 150 − 65 = 85 cm. Step two finds the total: 150 + 85 = 235 cm = 2 m 35 cm. 85 cm is only the pupil's table, and 3 m 65 cm treats shorter as longer, making the pupil's table 2 m 15 cm before adding. Example: a door is 2 m tall and a window is 80 cm shorter, 1 m 20 cm, so together they make 3 m 20 cm. Watch out: when the answer is more than 100 cm, write it in m and cm.
Soalan 3 / 6Latihan tambahan
Sebungkus tepung 2 kg. Mak Cik Ani menggunakan 450 g untuk roti dan 875 g untuk kek. Berapakah baki tepung itu?
2 kg = 2 000 g
roti 450 g
kek 875 g
baki ?
用掉两次后剩下 = baki selepas dua kali guna;面粉 = tepung 第一步把用掉的合起来:450 g + 875 g = 1 325 g。第二步求剩下:2 kg = 2 000 g,2 000 − 1 325 = 675 g。1 kg 550 g 是只减了做面包的;1 kg 325 g 是用掉的总量。检查:675 + 1 325 = 2 000 g。 例子:1 kg 糖,用掉 300 g 和 250 g,剩 450 g。 注意:2 kg 换成 2 000 g 再减,不要当成 200 g。
what is left after two uses = baki selepas dua kali guna; flour = tepung Step one adds the amounts used: 450 g + 875 g = 1 325 g. Step two finds what is left: 2 kg = 2 000 g, and 2 000 − 1 325 = 675 g. 1 kg 550 g subtracts only the bread flour, and 1 kg 325 g is the total used. Check: 675 + 1 325 = 2 000 g. Example: 1 kg of sugar with 300 g and 250 g used leaves 450 g. Watch out: change 2 kg to 2 000 g before subtracting, never to 200 g.
Soalan 4 / 6Latihan tambahan
Jisim 6 tin susu yang sama ialah 2 kg 400 g. Berapakah jisim 4 tin susu itu?
先求一个再求几个 = cari satu dahulu, kemudian beberapa;罐 = tin 第一步求一罐:2 kg 400 g = 2 400 g,2 400 ÷ 6 = 400 g。第二步求 4 罐:400 g × 4 = 1 600 g = 1 kg 600 g。400 g 只是一罐;9 kg 600 g 是把 6 罐的质量直接乘 4。检查:1 600 ÷ 4 = 400,400 × 6 = 2 400。 例子:5 包一样的饼干共 1 kg,每包 200 g,3 包 600 g。 注意:已知的是 6 罐的总质量,要先除回一罐。
find one first, then several = cari satu dahulu, kemudian beberapa; tin = tin Step one finds one tin: 2 kg 400 g = 2 400 g, and 2 400 ÷ 6 = 400 g. Step two finds 4 tins: 400 g × 4 = 1 600 g = 1 kg 600 g. 400 g is only one tin, and 9 kg 600 g multiplies the mass of all 6 tins by 4. Check: 1 600 ÷ 4 = 400 and 400 × 6 = 2 400. Example: 5 identical packets of biscuits weigh 1 kg, so one is 200 g and 3 are 600 g. Watch out: the given mass is for 6 tins together, so divide back to one tin first.
Soalan 5 / 6Latihan tambahan
Sebuah baldi berisi 7 ℓ 500 mℓ air. Air itu dituang sama banyak ke dalam 5 bekas. Berapa mililiter air dalam setiap bekas?
换成 mℓ 再除 = tukar kepada mℓ, kemudian bahagi;水桶 = baldi;容器 = bekas 题目要答案用 mℓ,先把 7 ℓ 500 mℓ 换成 7 500 mℓ,再平均分 5 份:7 500 ÷ 5 = 1 500 mℓ。1 ℓ 100 mℓ 是 7 ÷ 5 得 1、500 ÷ 5 得 100,把 ℓ 栏的余数 2 ℓ 丢掉了;150 mℓ 是少了一个 0。检查:1 500 × 5 = 7 500 mℓ。 例子:4 ℓ 平均倒进 8 个瓶子,4 000 ÷ 8 = 500 mℓ。 注意:ℓ 栏除不完的余数要换成 mℓ 并到后面,不能丢。
change to mℓ, then divide = tukar kepada mℓ, kemudian bahagi; bucket = baldi; container = bekas The answer must be in mℓ, so first change 7 ℓ 500 mℓ to 7 500 mℓ, then share it into 5 equal parts: 7 500 ÷ 5 = 1 500 mℓ. 1 ℓ 100 mℓ comes from 7 ÷ 5 = 1 and 500 ÷ 5 = 100, which throws away the remainder of 2 ℓ, and 150 mℓ loses a zero. Check: 1 500 × 5 = 7 500 mℓ. Example: 4 ℓ poured equally into 8 bottles gives 4 000 ÷ 8 = 500 mℓ each. Watch out: a remainder in the litre column must be changed to mℓ and carried on, never dropped.
Soalan 6 / 6Latihan tambahan
Kakak membuat 2 ℓ 400 mℓ air sirap. Dia mengisi 5 cawan, setiap cawan 300 mℓ. Berapakah baki air sirap itu?
倒几杯后剩下 = baki selepas mengisi cawan;糖浆水 = air sirap 第一步求 5 杯共多少:300 mℓ × 5 = 1 500 mℓ。第二步求剩下:2 ℓ 400 mℓ = 2 400 mℓ,2 400 − 1 500 = 900 mℓ。2 ℓ 100 mℓ 是只减了一杯;1 ℓ 500 mℓ 是倒出去的量。检查:900 + 1 500 = 2 400 mℓ。 例子:1 ℓ 200 mℓ 的汤,盛 4 碗各 250 mℓ,剩 200 mℓ。 注意:先把 ℓ 和 mℓ 合成 mℓ,减法就不必借位。
what is left after filling cups = baki selepas mengisi cawan; syrup drink = air sirap Step one finds the 5 cups together: 300 mℓ × 5 = 1 500 mℓ. Step two finds what is left: 2 ℓ 400 mℓ = 2 400 mℓ, and 2 400 − 1 500 = 900 mℓ. 2 ℓ 100 mℓ takes away only one cup, and 1 ℓ 500 mℓ is the amount poured out. Check: 900 + 1 500 = 2 400 mℓ. Example: 1 ℓ 200 mℓ of soup served in 4 bowls of 250 mℓ leaves 200 mℓ. Watch out: turning ℓ and mℓ into mℓ first means the subtraction needs no borrowing.

Tahniah! Kamu telah menyelesaikan latihan.

Kembali ke Panjang, Jisim dan Isi Padu Cecair