bai 1:
dung ghi d sai ghi s
a,1/2 gio =30 phut .........
b,2 ngay 4 gio>24 gio ..........
bai 2 viet do thich hop vao cho cham
4,8m3 =................dm3
5m3 27dm3 =..............m3
bai 3 dat tinh roi tinh
87,7:1,75
giai het ra cho mik nha mik cho 1 like
1:a)Đ
B)Đ
2 4800dm3
5.027m3
3:=1754/35