7:3,5= 2
702 : 7,2 = 97.5
9: 4.5 = 2
2 : 12,5= 0,16
tk nhe
7:3,5=2
702:7,2=97,5
9:4,5=2
2:12,5=0,16
tk nhé
7:3,5=2
702:7,2=97,5
9:4,5=2
2:12,5=0,16
tk nhe@@@@@@@@@@
ai tk minh minh tk lai
7 : 3,5 = 2
702 : 7,2 = 97,5
9 : 4,5 = 2
2 : 12,5 = 0,16
7:3,5= 2
702 : 7,2 = 97.5
9: 4.5 = 2
2 : 12,5= 0,16
tk nhe
7:3,5=2
702:7,2=97,5
9:4,5=2
2:12,5=0,16
tk nhé
7:3,5=2
702:7,2=97,5
9:4,5=2
2:12,5=0,16
tk nhe@@@@@@@@@@
ai tk minh minh tk lai
7 : 3,5 = 2
702 : 7,2 = 97,5
9 : 4,5 = 2
2 : 12,5 = 0,16
1 o to khoi hanh tu a luc 7 gio de di den b voi van toc 48km/gio . hoi di den b luc may gio biet quangduong ab la 72 km
mong cac ban giup minh nho giai cho minh co loi giai phep va dap so nha
mot cai be khong co nuoc , neu mo cung luc 2 voi thi sau 6 giobe se day, neu chi mo voi 1thi phai 9 gio be moi day.vay neu chi mo voi hai thi phai sau may gio thi day be? [cac ban nho ghi loi giai nhe]
GIUP MINH VOI NHO NHE MINH DANG CAN GAP LAM
AI NHANH MINH SE TICK CHO
Mot to cong nhan sua duong, ngay thu 1 sua duoc 2/9 quang duong,ngay thu 2 sua duoc 3/8 quang duong thi con 58m. Hoi
A} Quang duong can sua bao nhieu m?
B} Moi ngay doi do sua duoc bao nhieu m?
CAC BAN HAY GHI DAY DU LOI GIAI NHE
NHANH LEN NHE MINH TICK LIEN CHO MA CAN SU HO TRO CUA CAC BAN NHIEU LAM
Mot thep giay va 1 quyen vo gia 12.000 dong.4 thep giay dat hon 5 quyen vo 12.000 dong.Tinh gia tien 1 quyen vo, 1 thep giay.
cac ban giai nho giai chi tiet ho minh nha , ai dung minh cho 1 tick.
cac ban nho lam theo phuong phap khu nhe.
2cong nhan , moi nguoi duoc giao lam 5 san pham . Nguoi 1 bat dau lam tu 7 gio 30 phut den 9 gio 15 phut thi xong , nguoi 2 bat dau lam tu 13 gio 45 phut den 16 gio thi xong . Hoi nguoi nao lam nhanh hon va trung binh moi san pham lam nhanh hon bao nhieu phut ?
Cau hoi hoi kho hieu nen cac ban giup minh voi nha
1) Ban Xuan mua sach toan va sach van het 70 500 dong . Ban Ha mua sach toan va sach van het 64 500 dong . Biet moi quyen sach toan gia 7 500 dong , sach van gia 6 000 dong va so sach toan ban cua ban nay so sach van cua ban kia . Hoi ban Xuan mua bao nhieu sach toan , bao nhieu sach van ?
2) Hai nguoi cung lam chung 1 cong viec sau 12 gio thi hoan thanh . Neu nguoi thu nhat lam mot minh 2/3 cong viec mat 10 gio . Hoi nguoi thu hai lam 1/3 thi het bao lau moi xong ?
Cac ban giai duoc bai nao thi giai nhe !
7:3,5=
702:7,2=
9:4,5=
2:12,5=
minh co 1 cau hoi muon nho cac ban giai dap.Mong cac ban giup do:
tong 24 so tu nhien lien tiep bang 348.Tim so be nhat
1) 2 nguoi cung lam chung mot cong viec , sau 12 gio thi hoan thanh . Neu nguoi thu nhat lam 1 minh 2/3 cong viec mat 10 gio . Hoi nguoi thu hai lam 1/3 cong viec thi mat bao lau ?
2) So N la so co 2 chu so chia het cho 3 . Neu viet xen so 0 vao giua 2 chu so do roi cong no voi 2 lan chu so hang chuc cua so N ta duoc so moi gap 9 lan so N . Tim so N ?
Cac ban giai duoc bai nao thi giai nhe !