Question

Write the standard number 22,230 in scientific notation.
2.223 × 104
2.223 × 103
22.23 × 104
2.223 × 10-4

Answer 1

general form for scientific notation a * 10^n where a >0 and < 10 n is an integer.
move the decimal to the left you are dividing so to keep the value multiply
move the decimal to the right you are multiplying keep the value divide
the number of places moved determines the exponent