Question 1 - Mix Questions (Page 20 & 21) - Chapter 1 Class 7 - Large Numbers Around us (Ganita Prakash)

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Question 1 Using all digits from 0-9 exactly once (the first digit cannot be 0) to create a 10-digit number, write the — (a) Largest multiple of 5 Multiples of 5 are 5, 10, 15, 20, …. So, each multiple of 5 ends with either 0 or 5 Since we need largest multiple, we add largest digit in front, smallest at end Largest multiple of 5 is Question 1 Using all digits from 0-9 exactly once (the first digit cannot be 0) to create a 10-digit number, write the — (b) Smallest even number Even numbers are 2, 4, 6, 8, 10, 12, 14, …. So, even number ends with 0, 2, 4, 6, 8 Since we smallest even number, we add smallest digit in front, largest possible at end Smallest even number