Please help, baby weight math ques.

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Can someone please help me with this ques. The baby weighs 6 pound and 5 onces. How many gms do they weigh. the answer 2828 gms. When I work this problem out my answer is close but not exact, I dont know what Im doing wrong.

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Specializes in pediatrics, public health.

6 lbs x 16 ounces/lb = 96 ounces in 6 lbs. Plus 5 ounces = 101 ounces.

101 ounces x 28 grams/ounce = 2828.

Generally, nurses approximate an ounce as equal to 30 grams or 30 milliliters if it's a fluid, but the correct value is actually 28.

If you did something that came out close to 2828 but not exactly the same, I would not worry about it. For example, here's another way to do the calculation:

6 and 5/16 lbs = 6.3125 lbs. Times 454 grams/lb = 2865 grams.

The differences are due to rounding error. An ounce isn't exactly 28 grams, it's 28 point something, and a pound is 454 point something grams. If you got the first two digits right, that should be close enough.

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Thank you for your fast responds.

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I can do it even another way. 6lbs. 5 oz. is 6.3125 lbs. Multiply by 2.2 and you will get the weight in kilograms. Convert to grams and you get 2869.

All different answers. You need to find out how the instructor wants it done, or it very well maybe wrong in their eyes.

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