Răspunsuri

2014-10-06T09:55:39+03:00
A) 325 + 137 = 462
b) a + b - (c + d) = 325 - 137  = 188
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2014-10-06T09:58:31+03:00
A + b = 325
c + d = 137

a) a + b + c + d = (a + b) + (c + d) = 325 + 137 = 462
b) a + b - c - d = (a + b) - (c + d) = 325 - 137 = 188
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