I Believe it would be 2.32 x 106.
2.7 X 106 ======= Zeros are superfluous unless needed for significant figures.
Addition:Convert the numbers so that the exponents are the same. Add the coefficients. Move the decimal point if necessary.3.5 x 106 + 5.1 x 104 = 3.5 x 106 + 0.051 x 106 = 3.6 x 106 (rounded to two significant figures)Subtraction:Same as addition, except subtract instead of adding.4.5 x 109 - 7.8 x 1011 = 0.045 x 1011 - 7.8 x 1011 = -7.8 x 1011 (rounded to two significant figures)**Notice that if you change the smaller exponent to the larger exponent, you won't have to change exponents at the end.Multiplication:Multiply coefficients and add exponents.(5.9 x 1025)(1.2 x 106) = 7.1 x 1031 (rounded to two significant figures)Division:Divide coefficients and subtract the exponent in denominator from the exponent in the numerator.(1.59 x 1015)/(8.74 x 1022) = 0.182 x 10-7 = 1.82 x 10-8 (rounded to three significant figures)
8421032.9266 = 8.4210329266 × 10⁶ Scientific notation is generally used for very large and small numbers, so you would not normally have so many decimal places and would round to a number of significant figures.
There are three. 97,101,103
I Believe it would be 2.32 x 106.
In 100 million (100*106) are three significants (1, 0 and 0, not in 106).However in this "100,000,000 people" (as questioned) there are nine significant figures, becausse it is NOT equal to eg. 100,000,002, meaning the last figure (2) gives it a value of two more people!(But there are still a "100 million (100*106)" people)
3.528005 * 106 - not much of an advantage if you keep to 6 significant figures.
2.7 X 106 ======= Zeros are superfluous unless needed for significant figures.
21,960,000 or 2.196*106
Addition:Convert the numbers so that the exponents are the same. Add the coefficients. Move the decimal point if necessary.3.5 x 106 + 5.1 x 104 = 3.5 x 106 + 0.051 x 106 = 3.6 x 106 (rounded to two significant figures)Subtraction:Same as addition, except subtract instead of adding.4.5 x 109 - 7.8 x 1011 = 0.045 x 1011 - 7.8 x 1011 = -7.8 x 1011 (rounded to two significant figures)**Notice that if you change the smaller exponent to the larger exponent, you won't have to change exponents at the end.Multiplication:Multiply coefficients and add exponents.(5.9 x 1025)(1.2 x 106) = 7.1 x 1031 (rounded to two significant figures)Division:Divide coefficients and subtract the exponent in denominator from the exponent in the numerator.(1.59 x 1015)/(8.74 x 1022) = 0.182 x 10-7 = 1.82 x 10-8 (rounded to three significant figures)
8421032.9266 = 8.4210329266 × 10⁶ Scientific notation is generally used for very large and small numbers, so you would not normally have so many decimal places and would round to a number of significant figures.
106, because values of 5 and higher 5 are rounded upwards and values of less than 5 are rounded downwards. Obviously 5.5 is greater than 5 so it is rounded up to 6.
There are three. 97,101,103
212
1, 2, 53, 106.
All multiples of 106, which is an infinite number.