Forming 3-Digit Numbers
We will learn forming 3-digit numbers.
1. Without repeating any of the digits, build the smallest and greatest 3-digit numbers using the digits 3, 7 and 2.
Greatest Number
Arrange the digits in descending order. Start with hundreds place. 7 > 3 > 2 Greatest number possible is 732.
Smallest Number
Arrange the digits in ascending order. Start with hundreds place. 2 < 3 < 7 Smallest number possible is 237.
2. Without repeating any of the digits, build the smallest and greatest 3-digit numbers using the digits 5, 6 and 2.
Greatest Number
Arrange the digits in descending order. Start with hundreds place. 6 > 5 > 2 Greatest number possible is 652.
Smallest Number
Arrange the digits in ascending order. Start with hundreds place. 2 < 5 < 6 Smallest number possible is 256.
3. Without repeating any of the digits, build the smallest and greatest 3-digit numbers using the digits 3, 4 and 1.
Greatest Number
Arrange the digits in descending order. Start with hundreds place. 4 > 3 > 1 Greatest number possible is 431.
Smallest Number
Arrange the digits in ascending order. Start with hundreds place. 1 < 3 < 4 Smallest number possible is 134.
Questions on Forming 3-Digit Numbers:
I. Draw the beads for the given numbers. One has been done for you.
|
(i) 136 |
 |
(ii) 585 |
 |
|
(iii) 900 |
|
(iv) 604 |
|
|
(v) 399 |
|
(vi) 575 |
|
II. Count the beads and write the number:
 (i) 506 |
 (ii) |
 (iii) |
 (iv) |
III. Build the numbers using the given digits in each of the following, without repeating any of the digits.
(i) The greatest 3-digit number using the digits 5, 9, 0
(ii) The smallest 3-digit number using the digits 3, 0, 2
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