a) 125dm2b) 218cm2c) 240dm2d) 34cm2
A. \[1\frac{{25}}{{100}}\,{m^2};\frac{{109}}{{5000}}\,{m^2};2\frac{{40}}{{100}}\,{m^2};\frac{{17}}{{5000}}\,{m^2}\]
B. \[1\frac{{25}}{{100}}\,{m^2};2\frac{9}{{50}}\,{m^2};2\frac{{40}}{{100}}\,{m^2};\frac{{17}}{{5000}}\,{m^2}\]
C. \[1\frac{{25}}{{100}}\,{m^2};2\frac{9}{{50}}\,{m^2};2\frac{{40}}{{100}}\,{m^2};\frac{{17}}{{50}}\,{m^2}\]
D. \[1\frac{{25}}{{100}}\,{m^2};\frac{{109}}{{5000}}\,{m^2};2\frac{{40}}{{100}}\,{m^2};\frac{{17}}{{50}}\,{m^2}\]
Giải bởi Vietjack
a) \[125\,d{m^2} = \frac{{125}}{{100}}{m^2} = 1\frac{{25}}{{100}}\,{m^2}\]
b) \[218\,c{m^2} = \frac{{218}}{{10000}}{m^2} = \frac{{109}}{{5000}}\,{m^2}\]
c) \[240\,d{m^2} = \frac{{240}}{{100}}{m^2} = 2\frac{{40}}{{100}}\,{m^2}\]
d) \[34\,c{m^2} = \frac{{34}}{{10000}}{m^2} = \frac{{17}}{{5000}}\,{m^2}\]
Vậy\[1\frac{{25}}{{100}}\,{m^2};\frac{{109}}{{5000}}\,{m^2};2\frac{{40}}{{100}}\,{m^2};\frac{{17}}{{5000}}\,{m^2}\]
Đáp án cần chọn là: A
\[3\frac{3}{4}\] tạ; \[\frac{{377}}{{100}}\] tạ; \[\frac{7}{2}\] tạ; \[3\frac{{45}}{{100}}\] tạ; 365 kg.
