Formation of Numbers

Two different numbers can be formed using 2 different digits. In a 2-digit number 42. The digits are 4 and 2. We can form another number 24 by using same digits.

The greater number is formed by arranging the given digits in descending order.

is greater than

The smaller number is formed by arranging the given digits in ascending order.

is smaller than

We form the greater number by repeating the greater digit. 4 is the greater digit in the number.

→

44 is the greater number formed.

We form the smallest number by repeating the smallest digit.

→

Note: We cannot form any number by writing zero on the extreme left.

1. Write all possible 2-digit numbers using the given digits in each set. The digits can be repeated. Color in blue the smallest number in each set. One has been done for you.

Digits	Number
4, 5	44, 45, 54, 55
2, 9	___________________________
8, 3	___________________________
9, 6	___________________________
9, 6	___________________________

Answer:

Digits	Number
2, 9	22, 29, 92, 99
8, 3	33, 38, 83, 88
9, 6	66, 69, 96, 99
3, 2	22, 23, 32, 33

2. Write all possible 2-digit numbers using the given digits in each set. The digits can be repeated. Color in blue the greatest number in each set. One has been done for you.

Digits	Number
3, 7	33, 37, 73, 77
2, 3	___________________________
0, 7	___________________________
7, 8	___________________________
4, 1	___________________________

Answer:

Digits	Number
2, 3	22, 23, 32, 33
0, 7	70, 77
7, 8	77, 78, 87, 88
4, 1	11, 14, 41, 44

3. Write the greatest 2-digit number, without repeating the given digits. One has been done for you.

Digits	Number
1, 5	51
8, 4	___________________________
5, 2	___________________________
3, 5	___________________________
4, 8	___________________________

Answer:

Digits	Number
8, 4	84
5, 2	52
3, 5	53
4, 8	84

4. Write the smallest 2-digit number, without repeating the given digits. One has been done for you.

Digits	Number
1, 8	18
8, 9	___________________________
5, 3	___________________________
3, 6	___________________________
4, 7	___________________________

Answer:

Digits	Number
8, 9	89
5, 3	35
3, 6	36
4, 7	47

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