Question

Responda as potências de 10
a) 4.10³ + 2.10³
b)-3.10-³ . 4.10²

Answer 1

a) 4.10³ + 2.10³ = 6.10³ = 6000

b) -3.10^-3 . 4.10² = -12.10^-1 = -1,2

Answer 2

a)
10^3 = 1000
4000+2000 = 6000

b)
10^3=1000
10^2=100

-3*10^-3 * 4.10^2
-3*1/10^3 * 4*100
-3*1/1000 * 400
-3/1000 *400
-0,003*400
-1,2