419,854,000
2^7
640 written in expanded form using exponents is (6 x 10^2) + (4 x 10^1) + (0 x 10^0)
8,325 in expanded form using exponents is: (8 x 103) + (3 x 102) + (2 x 101) + (5 x 100).
Expanded Notation of 91,400,000 = (9 x 107) + (1 x 106) + (4 x 105) + (0 x 104) + (0 x 103) + (0 x 102) + (0 x 101) + (0 x 100)
419,854,000
4 x 108 + 107 + 9 x 106 + 8 x 105 + 5 x 104 + 4 x 103
419,854,000 using exponents is 4.19854 x 108
2^7
8 million = 8*106
Expanded Notation of 7,589 = (7 x 103) + (5 x 102) + (8 x 101) + (9 x 100)
144 can be written as 1.44 × 102 or in expanded notation using exponents as: (1 x 102) + (4 x 101) + (4 x 100)
Expanded Notation of 8,000 = (8 x 1,000) + (0 x 100) + (0 x 10) + (0 x 1)
(4 x 10^8) + (1 x 10^7) + (9 x 10^6) + (8 x 10^5) + (5 x 10^4) + (4 x 10^3) + (0 x 10^2) + (0 x 10^1) + (0 x 10^0)
289 = (2 x 102) + (8 x 101) + (9 x 100)
80 is in expanded form. Using exponents, it should be written as 8x10^1 OR 0.8x10^2.
Expanded Notation of 251,367 = (2 x 105) + (5 x 104) + (1 x 103) + (3 x 102) + (6 x 101) + (7 x 100)