Question

a)3x10^4.2x10^-3=


b)100x10^-2=
2x10^-6

c)5x10^-9+102x10^-9=

Answer 1

a) 3. 10000 . 2. $10^{-3}$
60.000. $\frac{1}{1000}$
60

b)$100.10^{-2}. 2 .10^{-6}$
$10^{+2} .10^{-2}. 2. 10^{-6}$
$2. 10^{-6}$



c)
$5. 10^{-9} + 102. 10^{-9}$
$10^{-9}(5+ 102)$
$107.10^{-9}$
$1,07.10^{-7}$