Question

Write the following numbers using base 10 and exponents:
(i) 12345
(ii) 1010.0101
(iii) 0.1020304

Answer 1

Part $\left(i\right)$

$12345$

$=1.2345\times {10}^4$

Part $\left(ii\right)$

$1010.0101$

$=1.0100101\times {10}^3$

Part $\left(iii\right)$

$0.1020304$

$=1.020304\times {10}^{-1}$

Hence, this is the answer.