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

$136 on Abacus$

(ii) 585

$Blank Abacus$

(iii) 900

$Blank Abacus$

(iv) 604

$Blank Abacus$

(v) 399

$Blank Abacus$

(vi) 575

$Blank Abacus$

II. Count the beads and write the number:

$506 on Abacus$

(i) 506

$Count the Beads$

(ii)

$Count the Beads and Write$

(iii)

$Count the Beads and Write the Number$

(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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