các bạn giúp mik với : hãy đặt 3 bài toán về phép trừ, 3 bài toán về phép chia

TP

Thiện Phạm

14 tháng 9 2017 - olm

#Toán lớp 5

2

LM

lê minh thanh giảng

14 tháng 9 2017

1-1= 3/3=

11-3= 18/2=

119-0,2= 129/3=

Đúng(0)

SR

SHIBUKI RAN

24 tháng 10 2018

1-1 3/3

34-45 45/5

102-54 102/2

Đúng(0)

NT

Nguyễn Thị Trà My

14 tháng 8 2016 - olm

các bạn hãy giúp mình ra đề bài có 5 phép tính về nhan 1 số với 1 hiệu và đè toán có lời văn về một số nhân với 1 tổng nhé !

Mình cảm ơn các bạn nhiều.

#Toán lớp 3

4

TT

tran thi ha anh

14 tháng 8 2016

ba ban A , B , C di mua bi A mua 5 vien bi B mua 10 vien bi Hỏi C mua bao nhieu vien biet rang so bi C mua gap 3 lan tong so bi cua A va B ( đe toán về một số nhân với 1 tổng nhé )

Đúng(0)

LS

Lê Sỹ Long Nhật

14 tháng 8 2016

Why ?!!!

Đúng(0)

NM

nguyễn minh hải

20 tháng 8 2021

Rambo học các phép toán trên trường và hôm nay anh ta học đến phép trừ và làm một bài tập về trừ một số cho 1. Tuy nhiên phép trừ này không đơn thuần như phép trừ bình thường và nó theo mô tả sau:Nếu chữ số cuối cùng của số đó khác không thì trừ số đó đi 1.Nếu chữ số cuối cùng của số đó là 0 thì chia số đó cho 10 (nói cách khác là xóa chữ số cuối cùng).Bạn được cho một số nguyên N và Rambo sẽ thực...

Đọc tiếp

#Tin học lớp 12

2

NM

nguyễn minh hải

20 tháng 8 2021

giúp minhg vs

Đúng(0)

AP

Anh Phạm

23 tháng 8 2021

uses crt;

var n,k,i:integer;

begin

readln(n,k);

for i:= 1 to k do

begin

if (n%2=0)and(n%5=0) then n:=n div 10

else n:=n-1;

end;

write(n);

readln;

end.

Đúng(0)

NN

Nhung Nguyen

7 tháng 1 2022

V . CÁC PHÉP TOÁN VỀ PHÂN THỨC :Bài 1 : Thực hiện các phép tính sau : b) x+3/x-2+4+x/2-x Bài 2 : Thức hiện các phép tính sau : a) x+1/2x+6+2x+3/x2+3x d) 3/2x2y +5/xy2 + x/y3 e) x/x-2y +x/x+2y + 4xy/4y2-x2 g) x+3/x+1 +2x-1/x-1 +x+5/X2-1 ; ...

Đọc tiếp

#Toán lớp 8

1

NL

Nguyễn Lê Phước Thịnh

7 tháng 1 2022

Bài 1:

b: \(=\dfrac{x+3-4-x}{x-2}=\dfrac{-1}{x-2}\)

Bài 2:

a: \(=\dfrac{x+1}{2\left(x+3\right)}+\dfrac{2x+3}{x\left(x+3\right)}\)

\(=\dfrac{x^2+x+4x+6}{2x\left(x+3\right)}=\dfrac{x^2+5x+6}{2x\left(x+3\right)}=\dfrac{x+2}{2x}\)

d: \(=\dfrac{3}{2x^2y}+\dfrac{5}{xy^2}+\dfrac{x}{y^3}\)

\(=\dfrac{3y^2+10xy+2x^3}{2x^2y^3}\)

e: \(=\dfrac{x^2+2xy+x^2-2xy-4xy}{\left(x+2y\right)\left(x-2y\right)}=\dfrac{2x^2-4xy}{\left(x+2y\right)\cdot\left(x-2y\right)}=\dfrac{2x}{x+2y}\)

Đúng(0)

PP

Phạm Phi Bằng

9 tháng 5 2016 - olm

dùng 2 phép toán cộng, trừ và các số từ 0 đến 9. Hãy sắp xếp thành một bài toán có kết quả là 100.

#Toán lớp 5

0

DN

Đỗ Nguyễn Quỳnh Anh

2 tháng 10 2016 - olm

Giúp em giải bài toán này với a : Bài 1 : Trong một phép chia có dư , lấy số bị chia trừ đi tích của số chia và số thương được 4 đơn vị .a. Số dư trong phép chia đó là .....b. Số chia bé nhất có thể có trong phép chia đó là ..............Bài 2 : Viết tiếp vào chỗ chấm : a. Trong các phép chia có số dư bằng 6 , số chia bé nhất của các phép chia đó là ..................b. Trong các phép chia có số dư...

Đọc tiếp

#Toán lớp 3

2

NK

Nguyễn Khánh An

4 tháng 2 2017

Bài2:

a, Số chia bé nhât trong phép chia có số dư bang 6 là :

6+1=7

Vậy số chia là 7

Đ/S : số chia là 7

Đúng(0)

NK

Nguyễn Khánh An

4 tháng 2 2017

Bài 2 :

b, Số dư là :

6 - 1 = 5

Vậy số dư là 5

Đ/S : 5

Đúng(0)

VM

Võ Mai Nhật Linh

21 tháng 3 2016 - olm

Nam alm2 3 bài toán và 2 phép tính mất 55 phút.Tính thời gian Nam làm mỗi phép tính,mỗi bài toán,biết thời gian làm mỗi bài toán lâu bằng 3 phép tính.

Làm đúng mik tick 2 cái.

#Toán lớp 5

1

DN

Đỗ Ngọc Ánh

21 tháng 3 2016

làm 1 phép tính hết 5 phút

làm 1 bài toán hết 15 phút

Đúng(0)

S

seasons4

11 tháng 10 2019 - olm

nêu các phép toán trong Q

phép cộng trừ nhân chia lũy thừa

giúp mik vssssssssssssssssssssssssssssssssssssssssssssssssssss

cần gấppppppppppppppppppppppppppppppppppppppppppppppppp

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

#Toán lớp 7

1

DL

Đào Lâm Nguyên

24 tháng 1 2022

ok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok

Đúng(0)

PK

Phạm Kim Oanh

5 tháng 4 2022

Tìm tất cả các số nguyên tố \(p\) sao cho \(2^p+p^2\) cũng là số nguyên tố ?
P/s: Em xin phép nhờ quý thầy cô giáo và các bạn yêu toán giúp đỡ em bài toán về chủ đề : Đồng Dư Thức với ạ!
Em cám ơn nhiều ạ!

#Toán lớp 9

1

XO

Xyz OLM

5 tháng 4 2022

Với p = 2 => 2^p + p² = 8 (loại)

Với p = 3 => 2³ + 3² = 17 (loại)

Nhận thấy với p > 3 => p lẻ

Đặt p = 3k + 1 ; p = 3k + 2 (k \(\in Z^+\))

Khi đó P = 2^p + p²

= (2^p + 1) + (p² - 1)

Vì p lẻ => 2^p + 1 = (2 + 1).(2^{p - 1} - 2^{p - 2} + ... + 1) \(⋮3\)(1)

Với p = 3k + 1 => p² - 1 = (p - 1)(p + 1) = (3k + 1 - 1)(3k + 1 + 1)

= 3k(3k + 2) \(⋮3\) (2)

Từ (1) ; (2) => P \(⋮3\)(loại)

Với p = 3k + 2 => p² - 1 = (p - 1)(p + 1) = (3k + 2 - 1)(3k + 2 + 1)

= 3(k + 1)(3k + 1) \(⋮\)3 (3)

Từ (1) ; (3) => P \(⋮3\)

=> p = 3 là giá trị cần tìm

Đúng(1)

PK

Phạm Kim Oanh

5 tháng 4 2022

Dạ hay quá, em cám ơn thầy ạ
Em gặp mấy bài toán về chủ đề : Đồng Dư Thức- khó quá
May được thầy giúp đỡ ạ!

Đúng(0)

Chúng tôi đề xuất

Tài nguyên

Ứng dụng mobile

Bảng xếp hạng

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