Giải bài 3 trang 155 - SGK Toán lớp 5

Hướng dẫn:

$1dm^3 = \frac{1}{1000}m^3 = 0,001m^3 \\ 1cm^3 = \dfrac{1}{1000}dm^3 = 0,001dm^3$

Bài giải:

a)

$6\text{m}^3 \, 272\text{dm}^3 = 6,272 \text{m}^3 \\ 2105\text{dm}^3 = 2,105 \text{m}^3 \\ 3\text{m}^3 82\text{dm}^3 = 3,082 \text{m}^3$

b)

$8\text{dm}^3 \, 439\text{cm}^3 = 8,439 ​​\text{dm}^3 \\ 3670\text{cm}^3 = 3,67​​\text{dm}^3 \\ 5\text{dm}^3 \, 77\text{cm}^3 = 5,077​​\text{dm}^3$