To convert that to standard notation, write it without the "x 10...", and move the decimal point two digits to the left. (For positive exponents, you would move the decimal point to the right.)
888 is the standard notation. The standard form is: 8.88 × 102
It is: 5.71*102
The standard notation is: -429
346 is the standard notation. The standard form is 3.46 × 102
8.026 × 102 or 8.026E2
289.654 = 2.89654 * 102
The exponential notation for the standard number 327.83 is: 3.2783 × 102
1.98739*102
It is: 4.0*102 in standard form or scientific notation
178 or 1.78 × 102
2.5162 × 102
It is: 8.2*102