Solve the given question: 1. Which of the following 242, 492, 772, 1312 or 1892 end with digit 1? 2. 2. Find the value of each of the following without calculating squares: a) 272-262, b) 1182-117 3. Write each of the following as difference of the square of two consecutive natural numbers: b) 75 c) 125 4. Write down the following as sums of odd numbers: a)72 b)92 5. Using property, find the value of the following: a)192-182 b) 232-222
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