Toán Lớp 5: 154 dam²= ha 4 ha 63 m²= dam² 269 m²=. Km² 28 ha 36 m²=. Dam² 287 ha=. Km² 15879 m²=. Km²

Question

Toán Lớp 5:  154 dam²=   ha 4 ha 63 m²= dam² 269 m²=.    Km² 28 ha 36 m²=.   Dam² 287 ha=.    Km² 15879 m²=.  Km²

ankim · Answer

km&sup2; / hm&sup2; (ha) / dam&sup2; / m&sup2; / dm&sup2; / cm&sup2; / mm&sup2; /       154 dam&sup2;= ha      1 ha = 100 dam&sup2;     Ta lấy 154 : 100 = 1,54 ha      &rArr; 154 dam&sup2;= 1,54 ha       4 ha 63 m&sup2;= dam&sup2;      1 ha = 100 dam&sup2;  /   1 dam&sup2; = 100 m&sup2;     4 ha = 400 dam&sup2;  /   63 m&sup2; = 0,63 dam&sup2;      &rArr; 400 + 0,63 = 400,63 dam&sup2;       269 m&sup2;=. Km&sup2;      1 km&sup2; = 1000000     Ta lấy 269 : 1000000 = 0,000269 km&sup2;      &rArr; 269 m&sup2;=0,000269 Km&sup2;       28 ha 36 m&sup2;=. Dam&sup2;      1 ha = 100 dam&sup2;       /    1 dam&sup2; = 100 m&sup2;     28 ha = 2800 dam&sup2;   / 36 m&sup2;  = 0,36 dam&sup2;     Ta lấy: 2800+0,36 = 2800,36 dam&sup2;      &rArr; 28 ha 36 m&sup2;=2800,36 Dam&sup2;       287 ha=. Km&sup2;      1 km&sup2; = 100 ha     Ta lấy: 287 : 100 = 2,87 km&sup2;      &rArr; 287 ha=2,87 Km&sup2;       15879 m&sup2;=. Km&sup2;      1 km&sup2; = 1000000 m&sup2;     Ta lấy: 15879 : 1000000 = 0,015879 km&sup2;      15879 m&sup2;=0,015879 Km&sup2;

dongoclandiem · Answer

Giải đáp:  154 dam&sup2;= 1,54 ha               4 ha 63 m&sup2;= 4,0063 dam&sup2;               269 m&sup2;= 0,0269 Km&sup2;               28 ha 36 m&sup2;=28,36 Dam&sup2;               287 ha= 2,87Km&sup2;               15879 m&sup2;= 0,015879 Km&sup2;