292
242 in standard notation is: 576
625
100.
3,844
62 = 36
310
620
22 = 2x2
3 to the second power is 32 or 3 x 3 which is 9
62 = 6 x 6 = 36
The standard notation of 6.254x10 to the 7th power is 62,540,000
The standard notation of 7.86x10 to the power of -4 is 0.000786