Why is any of those numbers the "missing part" from 5 pennies and a 6 <whatevers> of cream, or laundry detergent, or whatever that is. What exactly is missing? Pennies or liquid?
Is 1 missing from the pennies to make it turn into a cup? How about 2? 3? 4? Or is the liquid the missing part? The cup obviously isn't full. How many more liquid <whatevers> to make the cup full? Can liquid not be whole? When I was six I was clearly able to observe that my cup of milk didn't split into parts. Is it the number of pennies I have to put in the cup to raise the level and make it full? How should I know that? There are 5 pennies, and they all appear whole. Is it supposed to be the price for the cup? Then the answer is 1, but only if "6" is the price. But there's no $ of cents symbol, I knew what those looked like 1st grade. If it's raw numbers, I should be subtracting 5 from 1 (there's only 1 cup).
I could use a "subtraction sentence" to figure this out, but according to #12, subtraction sentences don't actually use subtraction.
Shame on you for pretending to understand the question and assume you know what the answer is just so you could try to brow beat me with your assumed smarts.
Here's a subtraction sentence question for you, the first three letters of "assumed" are?
#1 on this test in particular made rounds in my neighborhood as an example of how broken CC maths is. One of the local PTA organizers actually gave this exact test out to a group of parents and made them take it (I live in the district that used this test). Not a single one passed it. I live in statistically the most educated metro area in the entire United States and not one parent could pass this 1st grade exam -- which was given just a few weeks into the year. Now either we're a neighborhood of mental deficients, or the curriculum is absolutely broken and on top of that it manages to entirely eliminate the only help most students can get to understand this garbage, their parents.