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Arrow-Puffin-3_Semester-1 Maths 103%u2022 Arrange the digits in ascending order. 1 > 2 > 3 > 6%u2022 The smallest number formed is 1236.Example : 2Form the smallest 4-digit number using the digits 1, 0, 9, 7.%u2022 To make a 4-digit number when one of the digits is 0, we never start a number with 0.%u2022 Start with the next smallest digit. In this example, the next smallest digit is 1.Therefore, the smallest number of four digits is 1079.I. Make four different numbers with the given digits.a. 7, 4, 8, 6 b. 7, 0, 3, 6 c. 4, 2, 5, 1d. 2, 0, 1, 6 e. 5, 1, 7, 2 f. 3, 2, 1, 8II. Make the greatest number of 4 digits using the given digits.a. 3, 5, 6, 1 b. 4, 1, 0, 3 c. 5, 8, 2, 6d. 5, 6, 2, 9 e. 6, 3, 1, 4 f, 5, 6, 1, 8III. Make the smallest number of 4 digits using the given digits.a. 4, 0, 8, 5 b. 6, 3, 4, 2 c. 8, 7, 6, 0d. 1, 0, 5, 7 e. 4, 9, 2, 5 f. 7, 4, 1, 3ESTIMATION (ROUNDING OFF THE NUMBERS)When we do not need to know the exact number, we work with rounding off numbers. For example, when we say for a parent-teacher meeting around 200 parents visited the school, the actual number could be 193 or 232.Let's Understand Conceptual Understanding Let's Practise 2.9 Application