$$0,6\cdot 10^4+6\cdot 10^3+0,06\cdot 10^5 = $$
a) $$18\cdot 10^9$$
b) $$1,8\cdot 10^4$$
c) $$18\cdot 10^4 $$
d) $$6,066\cdot 10^7 $$
e) $$6,66\cdot 10^{12} $$
SOLUCIÓN:
$$0,6\cdot 10^4+6\cdot10^3+0,06\cdot 10^5 = $$
$$=\frac{6}{10}\cdot 10\cdot 10^3+6\cdot10^3+\frac{6}{100}\cdot 10^2\cdot 10^3=$$
$$=6 \cdot 10^3+6\cdot10^3+\frac{6}{100}\cdot 100\cdot 10^3=$$
$$=6 \cdot 10^3+6\cdot10^3+6\cdot 10^3=$$
$$=18\cdot 10^3 = 18\cdot 10^{-1}\cdot 10^4 = $$
$$=18\cdot \frac{1}{10}\cdot 10^4= \frac{18}{10}\cdot 10^4 = 1,8\cdot 10^4$$
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