Latihan
Latihan tambahan
13 soalan untuk mengukuhkan unit Tambah Wang. Jika salah, baca petunjuk dan cuba lagi.
RM 34.20 + RM 15.65 = ?
| 3 | 4 | . | 2 | 0 | |
| + | 1 | 5 | . | 6 | 5 |
| ? | ? | ? | ? | ? |
两个金额相加 = tambah dua nilai wang
先对齐小数点,先加 sen:20 + 65 = 85 sen,不满 100,不用进位。再加 ringgit:34 + 15 = 49。所以是 RM 49.85。
例子:RM 21.30 + RM 14.25 → 30 + 25 = 55 → 21 + 14 = 35 → RM 35.55。
注意:sen 不满 100 就不要进位。
adding two amounts = tambah dua nilai wang
Line up the decimal points and add the sen first: 20 + 65 = 85 sen, which is less than 100, so nothing is carried. Then add the ringgit: 34 + 15 = 49. The total is RM 49.85.
Example: RM 21.30 + RM 14.25 → 30 + 25 = 55 → 21 + 14 = 35 → RM 35.55.
Watch out: do not carry when the sen are below 100.
RM 68.75 + RM 9.50 = ?
| 6 | 8 | . | 7 | 5 | |
| + | 9 | . | 5 | 0 | |
| ? | ? | ? | ? | ? |
sen 满 100 进位 = kumpul semula sen
75 + 50 = 125 sen,等于 1 ringgit 25 sen,所以 sen 写 25,进 1 到 ringgit。再加 ringgit:1 + 68 + 9 = 78。答案 RM 78.25。
例子:RM 5.80 + RM 2.60 → 80 + 60 = 140 → 写 40 进 1 → 1 + 5 + 2 = 8 → RM 8.40。
注意:RM 77.25 是忘了加进位的 1。
regrouping sen = kumpul semula sen
75 + 50 = 125 sen, which is 1 ringgit 25 sen, so write 25 in the sen place and carry 1 to the ringgit. Then 1 + 68 + 9 = 78. The answer is RM 78.25.
Example: RM 5.80 + RM 2.60 → 80 + 60 = 140 → write 40, carry 1 → 1 + 5 + 2 = 8 → RM 8.40.
Watch out: RM 77.25 is what you get when the carried 1 is forgotten.
RM 1 480 + RM 2 365 = ?
| 1 | 4 | 8 | 0 | |
| + | 2 | 3 | 6 | 5 |
| ? | ? | ? | ? |
整数金额相加 = tambah nombor bulat
两个都是整数,直接像普通加法:0 + 5 = 5;8 + 6 = 14,写 4 进 1;1 + 4 + 3 = 8;1 + 2 = 3。答案 RM 3 845。
例子:RM 2 150 + RM 1 725 = RM 3 875。
注意:十位 8 + 6 = 14 要进 1 到百位。
adding whole amounts = tambah nombor bulat
Both amounts are whole ringgit, so add like ordinary numbers: 0 + 5 = 5; 8 + 6 = 14, write 4 and carry 1; 1 + 4 + 3 = 8; 1 + 2 = 3. The answer is RM 3 845.
Example: RM 2 150 + RM 1 725 = RM 3 875.
Watch out: 8 + 6 = 14 in the tens needs a carry to the hundreds.
RM 3 250 + RM 745.90 = ?
| 3 | 2 | 5 | 0 | . | 0 | 0 | |
| + | 7 | 4 | 5 | . | 9 | 0 | |
| ? | ? | ? | ? | ? | ? | ? |
整数加小数 = nombor bulat tambah sen
RM 3 250 要写成 RM 3 250.00 再对齐。sen:00 + 90 = 90。ringgit:3 250 + 745 = 3 995。答案 RM 3 995.90。
例子:RM 600 + RM 35.45 → RM 600.00 + RM 35.45 = RM 635.45。
注意:不补 .00 的话,745.90 的 9 可能对错位置。
whole amount plus sen = nombor bulat tambah sen
Write RM 3 250 as RM 3 250.00 before lining up. Sen: 00 + 90 = 90. Ringgit: 3 250 + 745 = 3 995. The answer is RM 3 995.90.
Example: RM 600 + RM 35.45 → RM 600.00 + RM 35.45 = RM 635.45.
Watch out: without the .00, the 9 of 745.90 may land in the wrong column.
RM 120.45 + RM 36.80 + RM 8.25 = ?
| 1 | 2 | 0 | . | 4 | 5 | |
| 3 | 6 | . | 8 | 0 | ||
| + | 8 | . | 2 | 5 | ||
| ? | ? | ? | ? | ? | ? |
三个金额相加 = tambah tiga nilai wang
先加 sen:45 + 80 + 25 = 150 sen,写 50,进 1 ringgit。再加 ringgit:1 + 120 + 36 + 8 = 165。答案 RM 165.50。
例子:RM 10.20 + RM 5.50 + RM 2.40 → 20 + 50 + 40 = 110 → 写 10 进 1 → 1 + 10 + 5 + 2 = 18 → RM 18.10。
注意:三个 sen 相加可能超过 100 很多,但最多只进 2。
adding three amounts = tambah tiga nilai wang
Add the sen first: 45 + 80 + 25 = 150 sen, write 50 and carry 1 ringgit. Then the ringgit: 1 + 120 + 36 + 8 = 165. The answer is RM 165.50.
Example: RM 10.20 + RM 5.50 + RM 2.40 → 20 + 50 + 40 = 110 → write 10, carry 1 → 1 + 10 + 5 + 2 = 18 → RM 18.10.
Watch out: three sen amounts can go well past 100, but the carry is never more than 2.
RM 2 000 + RM 1 650 + RM 325 = ?
心算三个整数 = congak tiga nombor bulat
一步一步加:2 000 + 1 650 = 3 650,再 3 650 + 325 = 3 975。答案 RM 3 975。
例子:RM 1 000 + RM 2 400 + RM 150 = RM 3 550。
注意:650 + 325 = 975,没有超过 1 000,所以千位不变。
adding three whole amounts in your head = congak tiga nombor bulat
Add step by step: 2 000 + 1 650 = 3 650, then 3 650 + 325 = 3 975. The answer is RM 3 975.
Example: RM 1 000 + RM 2 400 + RM 150 = RM 3 550.
Watch out: 650 + 325 = 975 stays under 1 000, so the thousands do not change.
RM 27.35 + ? = RM 50
求未知加数 = cari nombor yang tiada
从 RM 27.35 往上数到 RM 50:加 65 sen 到 RM 28,再加 RM 22 到 RM 50,所以方框是 RM 22.65。检查:RM 27.35 + RM 22.65 = RM 50.00。
例子:RM 8.10 + □ = RM 10 → 加 90 sen 到 9,再加 1 → RM 1.90。
注意:RM 77.35 是两数相加,不对。
finding the missing addend = cari nombor yang tiada
Count up from RM 27.35 to RM 50: add 65 sen to reach RM 28, then add RM 22 to reach RM 50, so the box is RM 22.65. Check: RM 27.35 + RM 22.65 = RM 50.00.
Example: RM 8.10 + □ = RM 10 → add 90 sen to reach 9, then add 1 → RM 1.90.
Watch out: RM 77.35 is the two numbers added together, which is wrong.
? + RM 1 275 = RM 4 000
往上数到总数 = kira ke atas hingga jumlah
从 1 275 往上数:加 725 到 2 000,再加 2 000 到 4 000,一共加了 2 725。所以方框是 RM 2 725。检查:2 725 + 1 275 = 4 000。
例子:□ + RM 640 = RM 1 000 → 加 360 → RM 360。
注意:也可以用 4 000 − 1 275 来算,答案一样。
counting up to the total = kira ke atas hingga jumlah
Count up from 1 275: add 725 to reach 2 000, then add 2 000 to reach 4 000, so we added 2 725 in all. The box is RM 2 725. Check: 2 725 + 1 275 = 4 000.
Example: □ + RM 640 = RM 1 000 → add 360 → RM 360.
Watch out: 4 000 − 1 275 gives the same answer if you prefer subtracting.
Ibu membeli periuk RM 89.90 dan cerek RM 45.50. Berapakah jumlah bayaran?
买两样东西 = beli dua barang
总额就是两个价钱相加。sen:90 + 50 = 140,写 40,进 1。ringgit:1 + 89 + 45 = 135。答案 RM 135.40。
例子:杯子 RM 6.80 和碟子 RM 4.70 → 80 + 70 = 150 → 写 50 进 1 → 1 + 6 + 4 = 11 → RM 11.50。
注意:问“jumlah bayaran”就是要相加。
buying two items = beli dua barang
The total payment is the two prices added together. Sen: 90 + 50 = 140, write 40 and carry 1. Ringgit: 1 + 89 + 45 = 135. The answer is RM 135.40.
Example: a cup at RM 6.80 and a plate at RM 4.70 → 80 + 70 = 150 → write 50, carry 1 → 1 + 6 + 4 = 11 → RM 11.50.
Watch out: jumlah bayaran means the prices must be added.
Harga sebuah basikal RM 385 dan sebuah topi keledar RM 62.90. Berapakah jumlah harga?
整数价钱加小数价钱 = harga bulat tambah harga ada sen
把 RM 385 写成 RM 385.00 再对齐。sen:00 + 90 = 90。ringgit:385 + 62 = 447。答案 RM 447.90。
例子:书桌 RM 240 和台灯 RM 38.50 → RM 278.50。
注意:RM 391.29 是把 62.90 对错位置算出来的。
whole price plus a price with sen = harga bulat tambah harga ada sen
Write RM 385 as RM 385.00 and line up the decimal points. Sen: 00 + 90 = 90. Ringgit: 385 + 62 = 447. The answer is RM 447.90.
Example: a desk at RM 240 and a lamp at RM 38.50 → RM 278.50.
Watch out: RM 391.29 comes from putting 62.90 in the wrong columns.
Encik Tan membayar bil air RM 24.60, bil elektrik RM 118.35 dan bil telefon RM 56. Berapakah jumlah bil?
三张账单 = tiga bil
RM 56 写成 RM 56.00。sen:60 + 35 + 00 = 95,不满 100。ringgit:24 + 118 + 56 = 198。答案 RM 198.95。
例子:三张账单 RM 30.50、RM 80 和 RM 12.25 → RM 122.75。
注意:95 sen 不进位,别多加 1。
three bills = tiga bil
Write RM 56 as RM 56.00. Sen: 60 + 35 + 00 = 95, below 100. Ringgit: 24 + 118 + 56 = 198. The answer is RM 198.95.
Example: three bills of RM 30.50, RM 80 and RM 12.25 → RM 122.75.
Watch out: 95 sen needs no carry, so do not add an extra 1.
Sebuah kedai menjual meja RM 1 250, kerusi RM 480 dan almari RM 2 300. Berapakah jumlah harga ketiga-tiga barang?
三件家具 = tiga barang
一步一步加:1 250 + 480 = 1 730,再 1 730 + 2 300 = 4 030。答案 RM 4 030。
例子:RM 900 + RM 650 + RM 1 200 = RM 2 750。
注意:250 + 480 = 730,没有超过 1 000,千位先不变。
three pieces of furniture = tiga barang
Add step by step: 1 250 + 480 = 1 730, then 1 730 + 2 300 = 4 030. The answer is RM 4 030.
Example: RM 900 + RM 650 + RM 1 200 = RM 2 750.
Watch out: 250 + 480 = 730 stays under 1 000, so the thousands do not change yet.
Lina ada RM 36.45. Ayah memberinya lagi RM 15.55. Berapakah wang Lina sekarang?
sen 刚好 100 = sen cukup 100
45 + 55 = 100 sen,刚好是 RM 1,所以 sen 写 00,进 1。ringgit:1 + 36 + 15 = 52。答案 RM 52.00。
例子:RM 9.25 + RM 0.75 → 25 + 75 = 100 → RM 10.00。
注意:RM 51.00 是忘了进位的 1。
sen making exactly 100 = sen cukup 100
45 + 55 = 100 sen, exactly RM 1, so write 00 in the sen place and carry 1. Ringgit: 1 + 36 + 15 = 52. The answer is RM 52.00.
Example: RM 9.25 + RM 0.75 → 25 + 75 = 100 → RM 10.00.
Watch out: RM 51.00 is the answer when the carried 1 is left out.
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