Question
(23.95)2 – (25.006)2 +
(8.0099)2 – (7.07)2 = ? - (14.990)2 What value should come in place of question mark (?) in the following question. (You need not to calcualte the exact value)Solution
Here the terms of the given expression can also be rounded off as (24)2 – (25)2 + (8)2 – (7)2 = ? - (15)2 ? = 576 – 625 + 64 – 49 + 225 ? = 191
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