GCSE Secondary Maths Age 13-17 - Number: Types of Number and BODMAS - Explained

The video tutorial explains how to solve two math problems. In the first part, it demonstrates how to use three out of four given digits to form the largest possible three-digit number. In the second part, it shows how to arrange four different digits to achieve the smallest possible sum, using each digit only once.

What is the largest three-digit number you can form using the digits 7, 3, and 9?

• 937

• 739

• 793

• 973

Which of the following is the correct largest three-digit number using the digits 7, 4, and 9?

• 947

• 974

• 497

• 749

To achieve the smallest sum, which digit should be placed in the tens position first?

• 6

• 2

• 8

• 1

What is the smallest possible sum you can get using the digits 8, 2, 1, and 6?

• 18 + 26

• 16 + 28

• 12 + 68

• 21 + 68

If you arrange the digits 1, 2, 8, and 6 to form two numbers, which combination gives the smallest sum?

• 12 and 68

• 21 and 68

• 18 and 26

• 16 and 28