Phan so 3 phan 4 viet duoi dang phan so thap phan la .a 0.34 b 0.75 c7.5 d3.4 cau 2 so thich hopde dien vaocho cham de co 360 kg =....tan cau so 3 10 % cua 9dm la.a 10 b 70 c9 d 0.9cau 4 thoi gian tu 8 gio kem 10 phut den 8 gio 30 phut la a 10 b 20 c 30 d 40 cau 5 the tich cua khoi go lap phuong co canh 5 cm la a 125 b 125 cm c 125 cm3 d 125 cm3
75% cua mot so la 4,2 vay so do la bao nhiu a 3,15 b 31,5 c5,6 d56 cau 2 the tich cua hinh lap phuong co canh 2,5 cm la a 6,25 b 15,625 c 15.625 cmvuong d 6.25 cm3
viet cac so do duoi dang so thap phan
a. 1 phan 4 gio
2 phan 3 phut
2 phan 5 gio
b. 3 phan 4 kg
7 phan 10 m
3 phan 5 km
viet cac phan so sau thanh phan so thap phan co mau so la 1000
2/3 7/125 5/100 5/8 9/200 1/10
viet phan so 3/5 duoi dang so thap phan co mau so la 10 va co mau so la 100 .
b viet hai phan so thap phan moi tim duoc thanh hai so thap phan
c co the viet 3/5 thanh nhung so thap phan nao
a viet phan so 3/5 duoi dang phan so thap phan co mau so la 10 va co mau so la 100
b viet hai phan so thap phan moi tim duoc thanh hai so thap phan
c co the viet 3/5 thanh nhung so thap phan nao
nguoi ta xep cac hinh lap phuong nho canh 1 cm thanh 1 hinh lap phuong lon co the thich 125 cm3 roi lay ra 4 hinh lap phuong nho nam o 4 dinh. Hoi dien tich toan phan kho hop con lai la bao nhieu
viet so thich hop vao cho cham
hinh lap phuongC co do dai canh gap 2 lan canh cau hinh lap phuong D
Dien tich xung quanh hinh C gap ...... lan hinh lap phuong D
Dien tich toan phan hinh C gap .....lan dien tich toan phan hinh D
The tich hinh C gap .......lan the tich hinh D
1. 2 va 2/1 dm viet duoi dang cm la bao nhieu
2. 3 va 1/5 ta viet duoi dang tan la bao nhieu
3. 3 va 3/5 phut viet duoi dang gio la bao nhieu
4. 4 va 4/5 giay viet duoi dang phut la bao nhieu
5. 5 va 1/2 m viet duoi dang cm la bao nhieu
6. 4 va 1/5 ta viet duoi dang km la bao nhieu
7. 2 va 3/5 phut viet duoi dang giay la bao nhieu
8. 2 va 1 phan 3 ngay viet duoi dang gio la bao nhieu
hinh chu nhat co chu vi gap 6 lan chieu rong va chieu dai hon chieu rong 30 m thi dien tich la bao nhieu
mot be nuoc du tru hinh lap phuong co canh 3,5m. ( kinh thuoc o trong long be ).
a. tinh the tich cua be do voi don vi do la l. biet rang, 1 dm khoi bang 1 l.
b. trong be da co chua san luong nuoc 10 250 l nuo, tinh ti so phan tram cua luong nuoc hien co trong be va the tich cua be.
c. nguoi ta mo voi nuoc chay trong 7 gi 30 phut thi duoc luong nuoc chiem 3 phan 5 the tich cua be. tinh trung binh moi gio voi nuoc chay duoc bao nhieu l nuoc vao be.
