Question

Find the sum of the largest and the smallest four-digit numbers.​

Answer 1

Step1: Finding the sum of the largest & the smallest 4-digit numbers​

We know that,​

The largest four-digit number is 9,999.​

The smallest four-digit number is 1,000.​
Sum = 9,999 + 1,000 = 10,999​

Hence, 10,999 is the sum of the largest and the smallest four-digit numbers.​