Question

Me ajudem a resolver essa notação cientifíca 7,49.10-5,6.10³???

Answer 1

$7.49*10=74.9\\ 5.6*10^3=5600\\ 74.9-5600=-5525.1$

Answer 2

(7,49.10)-(5,6.10³)=
=(7,49.10)-(560.10)
=(7,49-560).10
=(-552,51).10
=-5,5251.10³