Answer:
The baby lost 2 oz.
Explanation:
Since he was just born he couldn't have gained or lose weight so the weight he gained is zero
0 + 2 = 2 (Gain of 2 oz)
2 - 6 = -4 (Loss of 4 oz)
-4 - 3 = -7 (Loss of 7 oz)
-7 + 5 = -2 (Loss of 2 oz)
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