Respuesta :

A. 400

= 4 × 10^2

B. 6000

= 6 × 10^3

C. 2000000

= 2 × 10^6

D. 0.4

= 4 × 10^-1

( to find the standard form just count the zeros. )

a)= 4×10^2

b)= 6×10^3

c)= 2×10^6

d)= 4×10^-1

hope this helps

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