Question

quantos kilogramas tem 2.000.000.000 de miligramas

Answer 1

1 kg tem 1000000 miligramas.

logo, 2.000.000.000 tem 2000 kg

Answer 2

2000000000mg =

$2000000000mg = 2 \times 10 {}^{9} \times 10 { }^{ - 3} g \\ \\ 2 \times 10 {}^{ 9 + ( - 3)} g= 2 \times 10 {}^{6} g = 2 \times 10 {}^{6} \div 10 {}^{3} kg \\ \\ 2 \times 10 {}^{6 - 3} kg = 2 \times 10 {}^{3} kg \\ \\ 2 \times 10 {}^{3} kg = 2000kg$