Math isn't fun!
savanaburen
Posts: 18 Member
The serving size is 1 3/8 cups, and there are 207 cals per serving. I had 1 cup. How many cals did I eat? Send help.
3
Replies
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150 (ish) ?0
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Measure in grams using a food scale. Then you won't have to do math.10
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1) don't use volume measurements, they are inaccurate. Use a scale and weigh everything you can. You can usually change the serving size in the entry then enter the weight by grams or ounces.
2) When in doubt, refer to #1
For instance.. if you look up "Small Curd 4% Milkfat Cottage Cheese Prarie Farms" in the database, you'll see 1/2 cup is 100 calories. But, you can change the 1/2 cup measurement to 1 oz, then weigh it with a scale so that you get exactly 4 oz on your plate for 100 calories.
Only way to be sure, and it's sure a lot easier than re-calculating fractions.
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So a serving is 1.375 cups. You had one cup. Divide: 1/1.375 = 0.7272727....... That's how many servings you had.
I recommend a food scale and doing all of this in grams for better accuracy and easier math.6 -
but you should be looking at servings in grams anyway, not cups.
wait, was this a trick question??1 -
Eight elevenths of a serving
(207/11)*8 = 150.481 -
quiksylver296 wrote: »Measure in grams using a food scale. Then you won't have to do math.
You still have to do math, just not overtly difficult math.1 -
and this is why i hate that the entries are split between "serving size" measurements and per 100g measurements.0
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quiksylver296 wrote: »Measure in grams using a food scale. Then you won't have to do math.
You still have to do math, just not overtly difficult math.
Shhhh, this was a plot to get her to a food scale.2 -
I try to make all my serving sizes 1g so there is no math involved (113g banana is 113 servings, etc.). I do not do math well.0
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I try to make all my serving sizes 1g so there is no math involved (113g banana is 113 servings, etc.). I do not do math well.
I do do math well but I'm lazy. I'm so lazy that I put in the work on the front end to enter everything that I eat into My Foods so that I can use grams as the unit for all solids and whatever liquids have grams listed on the nutritional info. After that, suggested serving sizes are meaningless and I just eat the amount that I want and enter that amount of grams.
ETA: I enter items for the number of grams shown as a serving size (for instance, a serving on the nutritional info may be 39 grams so I'll enter 39 grams as a serving when I add the food to My Foods) and then, when I enter the food into my diary, use the drop-down menu to change to one gram servings and enter the weighed amount (so I would enter 32 grams as 32 one gram servings).0 -
I try to make all my serving sizes 1g so there is no math involved (113g banana is 113 servings, etc.). I do not do math well.
So you're the one doing that!
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savanaburen wrote: »The serving size is 1 3/8 cups, and there are 207 cals per serving. I had 1 cup. How many cals did I eat? Send help.
Uh, I don't know.
Pretty much ALL math looks to me like this:
If one plane leaves Austin heading northeast at 400 knots, and has left the ground at 4:45 AM, while another jet leaves New York heading southwest at 5:15 AM, what is the capital of South Dakota?
HTH.
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savanaburen wrote: »The serving size is 1 3/8 cups, and there are 207 cals per serving. I had 1 cup. How many cals did I eat? Send help.
Eww. No. There is enough math (which I don't mind, and really appreciate) when it comes to weight loss... the above is unnecessary evil math.
Sending out rescue crew now, with a digital food scale.1 -
savanaburen wrote: »The serving size is 1 3/8 cups, and there are 207 cals per serving. I had 1 cup. How many cals did I eat? Send help.
Why would anybody make a serving size be 1 3/8 cups? That's nuts! It must be supposed to be a normal number in a different (better) unit. I bet it's 250 g or 300 g or something.
Anyway, the way to solve this is as a ratio. We need to know that 1 3/8 = 1.375. To get your calculator to tell you that, do the fraction part first (3 divided by 8) then add the 1.
We know that 1.375 cups is 207 calories:
207 calories = ??? calories
1.375 cups ....... 1 cup
(Ignore my line of dots; they were the only way I could figure out to make my fractions line up.)
Then we cross-multiply. Since this is a ratio, we know that:
??? calories * 1.375 cups = 207 calories * 1 cup.
Divide both sides by 1.375 cups and we get:
??? calories = (207 calories * 1 cup)
................................1.375 cups
??? calories = 151 calories
(Again, ignore my line of dots.)
While a bit tedious, this method will always work for converting calories from one serving size to another.
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Cups + tablespoons + teaspoons = Inaccuracy
(lbs + oz) / fractions = confusion
g + kg = simplicity + accuracy1 -
150.54 continuous decimals...lol
so about 150.55 calories
simple way... 8/8 in one cup
8+3 = 11
207 divided by 11 = 18.81818181818182 (Lol) calories per 1/8 cup
times the 8 parts you ate = about 150.55 calories (150.545454......etc)1
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