Question

Write each of the following in expanded from using exponents:
(i) $2357.328$
(ii) $432.476$
(iii) $38.0325$

Answer 1

(i) $2357.328=2\times {10}^3+3\times {10}^2+5\times 10+7\times 1+3\times {10}^{-1}+2\times {10}^{-2}+8\times {10}^{-3}$

(ii) $432.476=4\times {10}^2+3\times 10+2\times 1+4\times {10}^{-1}+7\times {10}^{-2}+6\times {10}^{-3}$

(iii) $38.0325=3\times 10+8\times 1+0\times {10}^{-1}+3\times {10}^{-2}+2\times {10}^{-3}+5\times {10}^{-4}$