0.252 = 0.0625 = 6/100 + 2/1000 + 5/10000
62 is 36
0.0441
72 = 49 = 4.9*101
Seven squared is written 72
All you do is 28*28
To enter numbers in standard notation on a TI-84 calculator, you can use the "EE" notation for scientific notation. For example, to input ( 3.2 \times 10^4 ), type 3.2, then press the 2nd button followed by the EE button, and finally enter 4, resulting in 3.2EE4. This will display the number in standard notation. To convert a number to standard notation, you can also use the Mode settings to switch to scientific notation if needed.
8.2 times 10 to the 2nd power
531
3/4= to 2nd power
6.78 × 102 written in regular notation is 678
52 = 25
3 x 10 to the 5th power + 3 x 10 to the 4th power + 2 x 10 to the 2nd power