No, they're not. This really is a question on a second grade math test in Everyday Math, Unit 10 (it's an open response question): Julian has 10 coins. Sue has 5 coins. There is a total of 4 quarters. Sue has more than $1. Sue's coins are worth twice as much as Julian's coins. Show Julian's ten coins. Use P, N, D, or Q. Show Sue's ten coins. Use P, N, D, or Q. Let me explain that this type of problem has never been encountered before while using this text. Students have never been exposed to anything like this. Now please show me the second grader who can do this. Oh, I know there are some that can. There might even be one or two in my class who can. But to count this as 20 points on a second grade math test is absurd.