Ten to the second power is 100.
Move the decimal over two places.
110
561
7x10^7
8.9 times 10 power 4 in standard form is: 8.9 x 1048.9 x 104 in standard notation is: 89,000
6.89 x 104 = 68,900
2.8 x 109 = 2,800,000,000
(2 x 5)2
196
310
50,600 10 to the fourth power = 10000 10 to the second power = 100 5 x 10,000 = 50,000 6 x 100 = 600
3 to the second power is 32 or 3 x 3 which is 9
561
It is 2.5*10^1
You write it as 6.28*106
1.86 times 10 to the 5th power = 186,000
56,240
8,900
92000000