Level 3
An even 5-digit whole number is made up of different digits. The digit in the ten thousands place is the smallest even number. It is 5 less than the tens digit. The thousands digit is twice of the hundreds digit. The hundreds digit is 4 less than the tens digit. What is the smallest possible 5-digit whole number?
Level 3
If you round me off to the nearest thousand, you will get 7000. If you round me off to the nearest hundred, you will get 7100. The sum of all my digits is 16. What is my largest possible value?
Level 2
Both number X and number Y when rounded off to the nearest hundred are 1200 and 5500 respectively. What is the smallest possible total for X and Y?
Level 2
Jill thought of a number. When this number is rounded off to the nearest ten, it becomes 60. This number is also a common multiple of 4 and 8. What is the smallest possible number?
Level 2
The mass of a bag of sugar is 200 g. The mass of a bag of flour is 600 g. Mrs Foo wants to buy an equal amount of sugar and flour. What is the least number of bags of sugar that she should buy?
Level 2
Doris bought a box of 36 chocolates and a box of 45 sweets. However, she wanted to buy equal number of chocolates and sweets. What was the minimum number of boxes of chocolates and sweets she needed to buy?
Level 2
Mr Jones bought a carton of bean bags. There were fewer than 60 bean bags in the carton. The number of bean bags in the carton could be packed into boxes of 4 or 7. What was the greatest possible number of bean bags in the carton?
Level 2
Clara has some sweets. If she packs them in groups of 5, she will have 3 extra sweets. If she packs them in groups of 8, she will have 7 extra sweets. What is the minimum number of sweets Clara has?
