DXH_GP425_ICP_LOT4

What is the difference between 400 and 127?

• 273

• 227

• 277

• 287

Answer explanation

🔑 Keyword: the difference between = phép trừ
🧠 Cách làm: 400 – 127 = 273

28 subtracted from 455 equals:

• 428

• 427

• 429

• 417

Answer explanation

🔑 Keyword: subtracted from
🧠 Cách làm: 455 − 28 = 427

Find the next number in the sequence:
435, 410, 385, 360, ?

• 345

• 335

• 340

• 330

Answer explanation

🔑 Rule: subtract 25 each time
🧠 Cách làm: 435 → 410 → 385 → 360 → 335

A bookstore had 745 books and sold 314 books.
How many books are left?

• 431

• 411

• 421

• 451

Answer explanation

🔑 Keyword: sold, left
🧠 Cách làm: 745 − 314 = 431

Minh read 156 pages last week and 98 pages this week.
Duong read 124 fewer pages than Minh.
How many pages did Duong read?

• 130

• 156

• 124

• 98

Answer explanation

🔑 Keyword: fewer
🧠 total pages của Minh = 156 + 98 = 254
🧠 Duong’s pages: 254 − 124 = 130

Hung wants to buy two gifts: Dad's gift is 350,000 VND, and his sister's gift is 520,000 VND.

Hung already has 160,000 VND because he saved.

How much more money does Hung need to buy gifts for his Dad and Sister?

• 710,000

• 870,000

• 780,000

• 810,000

Answer explanation

Keyword: already, more money
🧠 Cách làm:

Tổng tiền mua quà: 350,000 + 520,000 = 870,000

Số tiền cần thêm: 870,000 − 160,000 = 710,000

643 − 342 = ?

• 291

• 301

• 311

• 281

The mass of box A is 8 kg. Box B is 5 kg heavier than box A.
What is the total mass of the two boxes?

• 12 kg

• 13 kg

• 21 kg

• 18 kg

Answer explanation

📌 Keywords:

• mass = khối lượng

• heavier = nặng hơn

• total mass = tổng khối lượng

87 less than 891 is:

• 814

• 804

• 805

• 806

Find the rule in the number sequence:
3500, 3300, 3100, 2900, ...
What is the next number?

• 2700

• 2600

• 2800

• 2500

Answer explanation

🔑 Rule: subtract 200 each step