Cách làm cho bạn:
Ta có:
$|−2022|= 2022$
$|\sqrt{312}|= \sqrt{312}$
$|−\sqrt{5,4}|= \sqrt{5,4}$
$|\frac{−273}{2}| = \frac{273}{2}$
$|−20,21| = 20,21$
Bài tập 20: Tìm $|−2022|;|\sqrt{312}|;|−\sqrt{5,4}|;|\frac{−273}{2}|;|−20,21|$.
Ta có:
$|−2022|= 2022$
$|\sqrt{312}|= \sqrt{312}$
$|−\sqrt{5,4}|= \sqrt{5,4}$
$|\frac{−273}{2}| = \frac{273}{2}$
$|−20,21| = 20,21$
Bình luận