Lesson 5 – Using Digits To Make Smallest And Largest Numbers

At the end of this lesson, students should be able to use digits to make the smallest and largest possible numbers.

Every number is made up of digits. No matter how large they look, they are just several digits put together to make these numbers.

Example 1

Form the largest possible number using these digits

5, 4, 9, 8, 3, 7, 1


The largest possible number is 9,875,431 and it is written in words as Nine million eight hundred and seventy five thousand four hundred and thirty- one.

Example 2

Form the least possible number using these digits

1, 4, 9, 8, 3, 7, 4, 0


The least possible number is 10,344,789 and it is written in words as Ten million three hundred and forty-four thousand seven hundred and eighty-nine.

You will observe that zero ‘0’ is the smallest digit but you cannot start a whole number with 0, so you start the number with the second smallest digit before you write the zero and continue in that order ending with the largest digit.

Example 3

Write 4 numbers that can be found between 48712160 and 36017812 using the same digits in the numbers.


36117820         37620108       41213680        47601218


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