Question
15.975 ×27.825 + (76.01)² +
12.98×18.426 = ?+ (79.09)² What approximate value should come in place of the question-mark(?) in the following question (You are not expected to calculate the exact value).Solution
15.975 ×27.825 + (76.01)² + 12.98×18.426 = ?+ (79.09)² 16 × 28 + 5776 + 13 × 18 = ? + (79)² 448 + 5776 + 234 = ? + 6241 ? = 6458 – 6241 = 217
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