To calculate the sum of 49 plus 49 plus 49 plus 49 plus 49, you would multiply 49 by 5, which equals 245. This is because addition is a form of repeated multiplication. So, 49 multiplied by 5 is 245.
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49 + 66 + 132 + 31 = 278
49
(x2 + 14x + 49) = (x + 7)2
49 + 100 = 149
Applying the rules of BODMAS, 48 + 45 + 2 + 49 + (1/5) = 144.2