1 – C [12th-grade test question]
2 – B [8th-grade test question]
3 – B [4th-grade test question]
4 – E [8th-grade]
5 – Any numbers greater than 18. [8th-grade]
6 – A [12th-grade]
7 – C [4th-grade]
8 – (3x + 1)(x – 5) [12th-grade]
9 – B [12th-grade]
10 – B [12th-grade]
11 – D [4th-grade]
12 – 8 [8th-grade]
13 – 2.03 [12th-grade]
14 – 5 feet [4th-grade]
15 – 0 [12th-grade]
16 – C [4th-grade]
17 – A [8th-grade]
18 – B [4th-grade]
19 – B [12th-grade]
20 – A [12th-grade]
21 – D [4th-grade]
22 – C [12th-grade]
23 – 1571 feet [8th-grade]
24 – 5 pounds [8th-grade]
25 – 397 [4th-grade]
26 – 9 dollar bills [4th-grade]
27 – B [8th-grade]
28 – B [12th-grade]
29 – B [8th-grade]
30 – C [8th-grade]
31 – B [4th-grade]
32 – 3.3 (NAEP also gives 3.30 as a correct answer, which is not the case since two decimal place precision calls for 3.33) [8th-grade]
33 – Fold in half and cut. Fold both halves in half and cut again. [4th-grade]
