I still don't get the problem with the new curriculum based on problem solving.
The new math standards were created to teach kids how to understand the meaning of numbers as opposed to just memorizing how sums work. Previous math standards were based on simplification of complex equations so that the memorization was still applicable. Now that calculators are so widely used, it's become apparent through research that kids aren't even worried about the memorization of the basics.
We learned math in this way:
2+4=6
2x3=6
12/2=6
This way when we got to something more complicated like 324x456, we could simplify the equation to something more manageable. First you say 6x4, 6x2, then 6x3 and put those numbers under the line. Then you go to the next spot and add a zero at the end then do 5x4, 5x2, and 5x3...and so on until you get the answer. This is fine for some people. For others, the disconnect between the equations and a true understand of what the numbers mean made math irrelevant to them in the early years and led to difficulties later on down the road.
So the new math curriculum is based on making true meaning and tangible applications to equations.
None of those questions seemed that difficult to figure out and if a teacher is teaching the concepts prior to the assessment, I don't see why students shouldn't be able to get the right answers.