492 Вправа 492Алгебра 8 клас Бевз 2025 · § 10 · стор. 98

492. Вирази:

${\displaystyle 1\text{т}=}$${\displaystyle 10^6\text{г}}$;

${\displaystyle 1\text{м}=}$${\displaystyle 10^2\text{см}}$;

${\displaystyle 1\text{км}=}$${\displaystyle 10^5\text{см}}$;

${\displaystyle 1\text{га}=}$${\displaystyle 10^4{\text{м}}^2}$.

а) ${\displaystyle 2,6\cdot 10^3\text{т}=}$${\displaystyle 2,6\cdot 10^3\cdot 10^6\text{г}=}$${\displaystyle 2,6\cdot 10^9\text{г}}$;

б) ${\displaystyle 4,75\cdot 10^{12}\text{см}}$=

=${\displaystyle 4,75\cdot 10^{12}:10^2\text{м}=}$${\displaystyle 4,75\cdot 10^{10}\text{м}}$;

в) ${\displaystyle 1,44\cdot 10^9\text{г}=}$${\displaystyle 1,44\cdot 10^9:10^6\text{т}=}$${\displaystyle 1,44\cdot 10^3\text{т}}$;

г) ${\displaystyle 9,6\cdot 10^5\text{см}=}$${\displaystyle 9,6\cdot 10^5:10^5\text{км}=}$${\displaystyle 9,6\text{км}}$;

ґ) ${\displaystyle 3,4\cdot 10^{-8}\text{т}=}$${\displaystyle 3,4\cdot 10^{-8}\cdot 10^6\text{г}=}$${\displaystyle 3,4\cdot 10^{-2}\text{г}}$;

д) ${\displaystyle 3,2\cdot 10^8{\text{м}}^2=}$${\displaystyle 3,2\cdot 10^8:10^4\text{га}=}$${\displaystyle 3,2\cdot 10^4\text{га}}$.