s2.1.1
Squares
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For faster speed in taking the test, squares up to 25 should be memorized, with memorization of squares up to 50 being highly recommended. In the event that memorization can't be achieved, remember the tricks discussed in Section 1 of the book as well as the method of FOILing. The table below lists squares from 11 to 50.
11² = 121
12² = 144
13² = 169
14² = 196
15² = 225
16² = 256
17² = 289
18² = 324
19² = 361
20² = 400
21² = 441
22² = 484
23² = 529
24² = 576
25² = 625
26² = 676
27² = 729
28² = 784
29² = 841
30² = 900
31² = 961
32² = 1024
33² = 1089
34² = 1156
35² = 1225
36² = 1296
37² = 1369
38² = 1444
39² = 1521
40² = 1600
41² = 1681
42² = 1764
43² = 1849
44² = 1936
45² = 2025
46² = 2116
47² = 2209
48² = 2304
49² = 2401
50² = 2500