TIMO Khối 5 – Vòng Quốc gia (Heat Round) – Đề số 4

Andy's father's age this year minuses 2, is divided by 4, adds 7 and is multiplied by 12. The result will be 252 years old. How old is Andy's father this year?

Minus: Trừ; Divide: Chia; Add: Cộng; Multiply: Nhân; Result: Kết quả.

There are a total of 30 chickens and rabbits in a farm. The animals have a total of 74 legs. How many rabbit(s) is / are there?

Total: Tất cả

There are 16 blue balls, 28 red balls and 30 green balls in a bag. At least how many balls should be picked up to ensure there are 5 balls for each colour?

At least: Ít nhất; Ensure: Chắc chắn; Each: Mỗi.