216.09
72 = 7*7 = 49
The standard form of 12 squared is 122
0.81 squared equals 0.81 x 0.81 The result in standard form is 0.6561
17 squared = 172 = 289
The standard form of seven thousands is 7,000The standard form of seven thousandths is 0.007
M
1,225
25
It is: 9
400
The standard form is 9 (3 x 3 = 9)