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24 tháng 8 2019

2k5 đây

7 tháng 1 2020

mình 2k4 đây

23 tháng 8 2019

I. Nội qui tham gia "Giúp tôi giải toán"

1. Không đưa câu hỏi linh tinh lên diễn đàn, chỉ đưa các bài mà mình không giải được hoặc các câu hỏi hay lên diễn đàn;

2. Không trả lời linh tinh, không phù hợp với nội dung câu hỏi trên diễn đàn.

3. Không "Đúng" vào các câu trả lời linh tinh nhằm gian lận điểm hỏi đáp.

Các bạn vi phạm 3 điều trên sẽ bị giáo viên của Online Math trừ hết điểm hỏi đáp, có thể bị khóa tài khoản hoặc bị cấm vĩnh viễn không đăng nhập vào trang web

I. Nội qui tham gia "Giúp tôi giải toán"

1. Không đưa câu hỏi linh tinh lên diễn đàn, chỉ đưa các bài mà mình không giải được hoặc các câu hỏi hay lên diễn đàn;

2. Không trả lời linh tinh, không phù hợp với nội dung câu hỏi trên diễn đàn.

3. Không "Đúng" vào các câu trả lời linh tinh nhằm gian lận điểm hỏi đáp.

Các bạn vi phạm 3 điều trên sẽ bị giáo viên của Online Math trừ hết điểm hỏi đáp, có thể bị khóa tài khoản hoặc bị cấm vĩnh viễn không đăng nhập vào trang web.

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..........................................................................................................................................................................................................................................................................................................................................................................................................................................................2k8 :3

bạn có thể vô tìm ở đây

I

I

V

https://olm.vn/hoi-dap#collapseOne

26 tháng 8 2019

2k4 đến 2k mấy

mik 2k7 nhung co 

bai j khong biet 

ban se gui cho mik nhe!

mik lam cho

26 tháng 8 2019

cảm ơn bạn 2k7 ...

nhưng mà bạn có thể yên phận với bài toán lớp 7 nha..

7 tháng 10 2021

:v hơi khó đấy

sạch sành sanh, tất tần tật, sát sàn sạt

7 tháng 10 2021

Tất tần tật, sạch sành sanh

19 tháng 2 2020

I. Nội qui tham gia "Giúp tôi giải toán"

1. Không đưa câu hỏi linh tinh lên diễn đàn, chỉ đưa các bài mà mình không giải được hoặc các câu hỏi hay lên diễn đàn;

2. Không trả lời linh tinh, không phù hợp với nội dung câu hỏi trên diễn đàn.

3. Không "Đúng" vào các câu trả lời linh tinh nhằm gian lận điểm hỏi đáp.

Các bạn vi phạm 3 điều trên sẽ bị giáo viên của Online Math trừ hết điểm hỏi đáp, có thể bị khóa tài khoản hoặc bị cấm vĩnh viễn không đăng nhập vào trang web.

19 tháng 2 2020

trồi oiiiii

Tham khảo nha

bài 1 . Một vòi nước chảy vào bể. Giờ đầu chảy được Đề kiểm tra Giữa kì 1 Toán lớp 5 có đáp án (cơ bản - Đề 5) | Đề thi Toán 5 có đáp án bể , giờ thứ hai chảy vào được Đề kiểm tra Giữa kì 1 Toán lớp 5 có đáp án (cơ bản - Đề 5) | Đề thi Toán 5 có đáp án bể . Hỏi trung bình mỗi giờ vòi nước đó chảy vào được bao nhiêu phần của bể?

bài 2 : 

Tính biểu thức sau một cách hợp lí nhất:

Đề kiểm tra Giữa kì 1 Toán lớp 5 có đáp án (cơ bản - Đề 5) | Đề thi Toán 5 có đáp án

bài 3 :

Một thửa ruộng hình chữ nhật có chiều dài 60m, chiều rộng bằng Đề kiểm tra Giữa kì 1 Toán lớp 5 có đáp án (cơ bản - Đề 3) | Đề thi Toán 5 có đáp án chiều dài.

a. Tính diện tích thửa ruộng đó.

b. Biết rằng, cứ 100m2 thu hoạch được 50kg thóc. Hỏi trên cả thửa ruộng đó người ta thu hoạch được bao nhiêu tạ thóc ?

Bài 4 : Một con trâu ăn hết một bó cỏ trong 16 phút. Nhưng trâu mới ăn được 4 phút thì có thêm một con bê đến ăn cùng. Cả hai ăn trong 10 phút nữa thì hết cỏ. Hỏi nếu con bê ăn một mình thì sau bao lâu ăn hết bó cỏ?

Bài 5 : 

Một hình vuông có diện tích 196cm2 và có chu vi bằng chu vi hình chữ nhật có chiều rộng bằng

Đề kiểm tra Giữa kì 1 Toán lớp 5 có đáp án (nâng cao - Đề 4) | Đề thi Toán 5 có đáp án chiều dài. Tính diện tích hình chữ nhật ?

4 tháng 8 2020

Mình sẽ cho bạn 1 số dạng bài cơ bản nhé.                                                                                                                                                         Bài 1. 1 hình lập phương có độ dài các cạnh là 6cm,5cm và 40mm. Tính thể tích hình lập phương đó                                                            Bài 2. 1 xe máy đi trong 2 giờ được 46 km. Tính vận tốc của xe máy đó.                                                                                                       Bai 3. 2 xe cùng chuyển động tại A và B cách nhau 60km. Vận tốc xe tại A là 30km/giờ.Vận tốc xe tại B là 10km/giờ.Bạn hãy xác định thời gian 2 xe gặp nhau..                                                                                                                                                                                    Bài 4.1 ca nô đi với vân tốc 14km/giờ.Tính quãng đường đi được của ca nô trong 3 giờ.                                                                                Bài 5.1 ô tô đi từ A lúc 7 giờ 30 phút, đến B lúc 14 giờ với vận tốc 30 km/giờ . Tính độ dài quãng đường AB..                      Mình chép mỏi hết cả tay luôn rồi. Chúc bạn ôn thi thành công nhé.

Tôi tên là An-đrây-ca. Lúc lên 9 tuổi, tôi sống với mẹ và ông ngoại, ông ngoại tôi đã 96 tuổi nên rất yếu.

Một buổi chiều, ông nói với mẹ tôi: “Bố khó thở lắm!...”. Mẹ liền bảo tôi đi mua thuốc. Tôi nhanh nhẹn đi ngay, nhưng dọc đường lại gặp mấy đứa bạn đang chơi đá bóng rủ nhập cuộc. Chơi được một lúc, sực nhớ lời mẹ dặn, tôi vội chạy một mạch đến cửa hàng mua thuốc rồi mang về nhà.

Bước vào phòng ông nằm, tôi hoảng hốt thấy mẹ đang khóc nấc lên. Thì ra ông đã qua đời. Tôi ân hận tự trách: “Chỉ vì mình mải chơi bóng, mua thuốc về chậm mà ông chết". Tôi oà khóc và kể hết mọi chuyện cho mẹ nghe. Mẹ an ủi:

- Không, con không có lỗi. Chẳng thuốc nào cứu nổi ông đâu, ông đã mất từ lúc con vừa ra khỏi nhà.

Nhưng tôi không nghĩ như vậy. Cả đêm đó, tôi ngồi nức nở dưới gốc cây táo do tay ông vun trồng. Mãi sau này, khi đã lớn, tôi vẫn luôn dằn vặt: “Giá mình mua thuốc về ngay thì ông ngoại còn sống thêm được vài năm nữa!”.

HT

Các bạn thân mến của tôi. Tôi là An-đrây-ca. Tôi xin kể với các bạn một câu chuyện của tôi mà cho mãi đến bây giờ nó vẫn cứ dằn vặt tôi, vì tôi là một kẻ có lỗi trong chuyện này. Hồi ấy, tôi mới lên chín, sống với mẹ và ông. Ông tôi đã 96 tuổi nên rất yếu. Vào một buổi chiều nọ, ông tôi nói với mẹ tôi rằng: “Con ơi! Bố thấy khó thở lắm!”. Nghe ông tôi nói vậy, mẹ tôi liền bảo tôi đi mua thuốc cho ông uống. Tôi nhanh nhẹn đi ngay. Dọc đường tôi gặp mấy đứa bạn thân, chúng rủ tôi cùng đá bóng. Tôi nhập cuộc và say sưa chơi bóng cùng chúng bạn đến khi sực nhớ lời mẹ dặn tôi vội vàng chạy đi mua thuốc. Các bạn biết không? Khi tôi vừa mới bước vào phòng ông nằm. Tôi thấy mẹ tôi đang gục xuống người ông khóc nức nở. Ông tôi đã qua đời. Tôi hốt hoảng, hai chân khuỵu xuống. Tôi nghĩ “Chỉ vì mình mải chơi bóng, mua thuốc về chậm mà ông chết”. Tôi òa khóc và kể hết mọi việc cho mẹ nghe. Mẹ tôi xoa đầu tôi, an ủi. – An-đrây-ca, con không có lỗi trong chuyện này! Chẳng có thuốc nào cứu được ông cả. Ông con mất khi con vừa mới bước ra khỏi nhà. Có thể ông tôi mất là do tuổi già sức yếu nhưng dù sao đôi với tôi, hành động mải chơi của mình và cái chết của ông tôi, mãi làm tôi dằn vặt, ray rứt suốt đời, các bạn ạ!. => của bạn đấy