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PV
phong vu
13 tháng 2 2017

The sum of five consecutive natural number is 4215 .the smallest number is
#Toán lớp 5
3
NC
nhóm cung cự giải
13 tháng 2 2017

chả hiểu

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HT
Hoàng Thị Minh Châu
6 tháng 3 2018

Gọi a là số nhỏ nhất
Theo bài ra ta có: a + a + 1 + a + 2 + a + 3 + a + 4 = 4215
5a + 10 = 4215
5a = 4215 - 10 = 4205
a = 4205 : 5 = 841
Vậy: Số nhỏ nhất là: 841

k minh nha ^.^

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DK
Dragoon Knight
2 tháng 4 2015
Fill in the blank with the suitable numberQuestion 1:There are 49 students in a class. Boy students are  the number of girl students. There are  girl students in this class.Question 2:Calculate: The value of A is Question 3:Calculate: The value of A is Question 4:Jessica is 8 years old. Her grandmother is  of her age. How old is Jessica's grandmother?Answer:  years old.Question 5:If the sum of denominator and numerator of a fraction is 52 and the denominator is 18 units more than the numerator...
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Fill in the blank with the suitable number

Question 1:
There are 49 students in a class. Boy students are  the number of girl students. There are  girl students in this class.

Question 2:
Calculate: 
The value of A is 

Question 3:
Calculate: 
The value of A is 

Question 4:
Jessica is 8 years old. Her grandmother is  of her age. How old is Jessica's grandmother?
Answer:  years old.

Question 5:
If the sum of denominator and numerator of a fraction is 52 and the denominator is 18 units more than the numerator then the numerator is 

Question 6:
Find two consecutive even numbers if the first number is  of the second number.
Answer: The second number is 

Question 7:
Calculate: 
The value of A is 

Question 8:
How many natural numbers not greater than 1665 which are divisible by 5?
Answer:  numbers

Question 9:
If  then  is 

Question 10:
The sum of three consecutive even numbers is 960. The greatest numbers is 
    #Toán lớp 5
    1
    DM
    Đỗ Minh Tú
    2 tháng 4 2015

    sir, this is the place to learn math, not english offline. If you want to learn English is very wed page: ioe.vn

    Đúng(0)
    VT
    Vương Thiên Di
    6 tháng 4 2016
    Problem 1. Find two distinct numbers, given that their sum is three times their difference, and their product is eight times their difference.Problem 2. The following sequence of numbers was written on a board: 1, 2, 3, 4, ..., 200. Uyen erased three consecutive numbers and the sum of the remaining numbers is 19848. Find the three numbers that were erased.Problem 3. The price of a type of chalk in August dropped by 10% compared to that in June, but increased by 10% in October compared to that...
    Đọc tiếp

    Problem 1. Find two distinct numbers, given that their sum is three times their difference, and their product is eight times their difference.

    Problem 2. The following sequence of numbers was written on a board: 1, 2, 3, 4, ..., 200. Uyen erased three consecutive numbers and the sum of the remaining numbers is 19848. Find the three numbers that were erased.

    Problem 3. The price of a type of chalk in August dropped by 10% compared to that in June, but increased by 10% in October compared to that in August. How many percent has the price increased or decreased from June to October ?

    Problem 4.Find the smallest whole number such that when it is multiplied by 12345679, the resulting product is a number having all of its digits equal to 8.

    Problem5. Find the digits a and b such that the number  2016ab is divisible by 2 and 9, and has a remainder of 3 when divided by 5.
    #Toán lớp 5
    0
    DK
    Dragoon Knight
    2 tháng 4 2015
    Question 1:Compare:  Question 2:Compare: A =  and B = Answer: A  BFill in the blank with the suitable number Question 3:Calculate: The value of A is  Question 4:Calculate: The value of A is  Question 5:Find two consecutive even numbers if the first number is  of the second number.Answer: The second number is  Question 6:There are 49 students in a class. Boy students are  the number of girl students. There are  girl students in this class. Question 7:How many natural numbers not greater...
    Đọc tiếp

    Question 1:
    Compare: 

     

    Question 2:
    Compare: A =  and B = 
    Answer: A  B

    Fill in the blank with the suitable number

     

    Question 3:
    Calculate: 
    The value of A is 

     

    Question 4:
    Calculate: 
    The value of A is 

     

    Question 5:
    Find two consecutive even numbers if the first number is  of the second number.
    Answer: The second number is 

     

    Question 6:
    There are 49 students in a class. Boy students are  the number of girl students. There are  girl students in this class.

     

    Question 7:
    How many natural numbers not greater than 1665 which are divisible by 5?
    Answer:  numbers

     

    Question 8:
    Calculate: 
    The value of A is 

     

    Question 9:
    How many 3 - digit numbers are divisible by 2, 3 and 5?
    Answer:  numbers.

     

    Question 10:
    If  then  is 

     
    #Toán lớp 5
    2
    TN
    Trịnh Nguyễn Tuấn Anh
    9 tháng 4 2015

    I'm sorry to say that I don't see any mathematical expressions. And you should translate your questions into Vietnamese so all people can answer them.

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    NH
    Nguyễn Hà Linh
    6 tháng 8 2016

    I am very sorry but I cannot see any numbers to answer your questions

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    OS
    oOo sOulLeSs kIlLeR oOo
    1 tháng 12 2015
    help me !!!!!!!!!Question 1:Compare:   Question 2:Compare: A =  and B = Answer: A  BFill in the blank with the suitable numberQuestion 3:The perimeter of the following rectangle in centimeter is  cm Question 4: =  Question 5: =  Question 6:The sum of denominator and numerator of a fraction is 91 and the fraction is equal to . The denominator of the fraction is Question 7:The sum of two consecutive odd numbers is 2016. The greater number is Question 8:The value of n is Question 9:In the...
    Đọc tiếp

    help me !!!!!!!!!

    Question 1:
    Compare:   

    Question 2:
    Compare: A =  and B = 
    Answer: A  B

    Fill in the blank with the suitable number

    Question 3:
    The perimeter of the following rectangle in centimeter is  cm
     

    Question 4:
     =  

    Question 5:
     =  

    Question 6:
    The sum of denominator and numerator of a fraction is 91 and the fraction is equal to . The denominator of the fraction is 

    Question 7:
    The sum of two consecutive odd numbers is 2016. The greater number is 

    Question 8:

    The value of n is 

    Question 9:
    In the following figure, ABED and BCFE are square. If the perimeter of the rectangle ACFD is 54cm then its area is  
     

    Question 10:
    The sum of the page number of the last 3 pages of a book is 369. What is the last page number?
    Answer: The last page number is 
    #Toán lớp 5
    2
    NY
    Như Ý
    1 tháng 12 2015

    ko hiểu bài nhìn hoa cả mắt

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    NT
    Nguyễn Thuỳ Trang
    1 tháng 12 2015

    cho hỏi bạn viết gì vậy

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    DH
    Đỗ Hồng Anh
    28 tháng 2 2017
    Question 1:Convert 1m = ..........cm.Question 2:Convert 1mm = ............ mQuestion 3:If x is a natural number and 3,8 < x < 4,3 then x = ..............Question 4:In the following numbers, which is the greatest?7,568; 9,265; 8,975; 7,689; 9,256Answer:The greatest number is .............Question 5:In the following numbers, which is the smallest?4,92; 5,84; 4,85; 8,54; 4,58; 5,48Answer:The smallest number is ...............Question 6:Convert: 5km 2m = ............. km.Question 7:If m is a even number and 81,32 > m >...
    Đọc tiếp

    Question 1:
    Convert 1m = ..........cm.

    Question 2:

    Convert 1mm = ............ m

    Question 3:

    If x is a natural number and 3,8 < x < 4,3 then x = ..............

    Question 4:

    In the following numbers, which is the greatest?
    7,568; 9,265; 8,975; 7,689; 9,256
    Answer:
    The greatest number is .............

    Question 5:

    In the following numbers, which is the smallest?
    4,92; 5,84; 4,85; 8,54; 4,58; 5,48
    Answer:
    The smallest number is ...............

    Question 6:

    Convert: 5km 2m = ............. km.

    Question 7:

    If m is a even number and 81,32 > m > 78,54 then m = .......

    Question 8:

    Use all the digits below to form the decimal number that is smaller than 5.
    2; 5; 9; 4; 8
    How many such numbers are there?
    Answer:
    There are ........... numbers.

    Question 9:

    Fill in the blank with the suitable sign (>, <, =)
    Compare:
    76,5 ......... 75,66

    Question 10:

    Compare: 31,040 ........... 31,04

     

     
    #Toán lớp 5
    4
    VT
    Vũ Thị Ngọc Mai
    1 tháng 3 2017
    Question 1:100 cm Question 2:0,001 m Question 3:4 Question 4:9,265 Question 5:4,58 Question 6:5,002 Question 7:80 Question 8:85 Question 9:> Question 10:=
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    N
    nguyenduckhue
    28 tháng 2 2017

    nhiều vậy

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    NX
    Nguyễn Xuân Bách
    13 tháng 4 2022
    Combinatorics21. 15 students join a competition. Only top 5 students can be promoted to next round. How many different way(s) of promotion advance is / are there?Different way: Cách khác nhau.22. It is known that there are 8 classes of grade 5 in a primary school. At least how many students are there in grade 5 to ensure there exist 41 students in the same class?At least: Ít nhất; Ensure: Chắc chắn; Exist: Tồn tại.23. Choose 3 digits from 1, 2, 3, 4, 6, 8 and 0 to form...
    Đọc tiếp

    Combinatorics
    21. 15 students join a competition. Only top 5 students can be promoted to next round. How many different way(s) of promotion advance is / are there?
    Different way: Cách khác nhau.
    22. It is known that there are 8 classes of grade 5 in a primary school. At least how many students are there in grade 5 to ensure there exist 41 students in the same class?
    At least: Ít nhất; Ensure: Chắc chắn; Exist: Tồn tại.
    23. Choose 3 digits from 1, 2, 3, 4, 6, 8 and 0 to form 3-digit numbers. How many even number(s) greater than 300 is / are there? (The repetition of digits is not allowed)
    Digit: Chữ số; 3-digit number: Số có 3 chữ số; Even number: Số chẵn; Greater than: Lớn hơn; Repetition of digits is not allowed: Các chữ số không được lặp lại.
    24. A flight of stairs has 10 steps. Peter can go up for 1 step, 2 steps or 3 steps each time. How many way(s) is / are there for Peter to go up the stairs?
    Step: Bước; Way: Cách.
    25. Numbers are drawn from 80 integers 20 to 99. At least how many number(s) is / are drawn at random to ensure that there are two numbers whose sum is 85?
    Integer: Số nguyên; At least: Ít nhất; Random: Ngẫu nhiên; Ensure: Chắc chắn; Sum: Tổng.
    ~ End of Paper ~
      
    #Toán lớp 5
    6
    PT
    Phan Thuý Bình
    13 tháng 4 2022

    là seo pạn?mik hem hỉu??????????????????????

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    PT
    Phan Thuý Bình
    13 tháng 4 2022

    Đọc cái bài mà mún trầm kẻm!

    Đúng(0)
    NX
    Nguyễn Xuân Bách
    13 tháng 4 2022
    Combinatorics21. 15 students join a competition. Only top 5 students can be promoted to next round. How many different way(s) of promotion advance is / are there?Different way: Cách khác nhau.22. It is known that there are 8 classes of grade 5 in a primary school. At least how many students are there in grade 5 to ensure there exist 41 students in the same class?At least: Ít nhất; Ensure: Chắc chắn; Exist: Tồn tại.23. Choose 3 digits from 1, 2, 3, 4, 6, 8 and 0 to form...
    Đọc tiếp

    Combinatorics
    21. 15 students join a competition. Only top 5 students can be promoted to next round. How many different way(s) of promotion advance is / are there?
    Different way: Cách khác nhau.

    22. It is known that there are 8 classes of grade 5 in a primary school. At least how many students are there in grade 5 to ensure there exist 41 students in the same class?
    At least: Ít nhất; Ensure: Chắc chắn; Exist: Tồn tại.

    23. Choose 3 digits from 1, 2, 3, 4, 6, 8 and 0 to form 3-digit numbers. How many even number(s) greater than 300 is / are there? (The repetition of digits is not allowed)
    Digit: Chữ số; 3-digit number: Số có 3 chữ số; Even number: Số chẵn; Greater than: Lớn hơn; Repetition of digits is not allowed: Các chữ số không được lặp lại.

    24. A flight of stairs has 10 steps. Peter can go up for 1 step, 2 steps or 3 steps each time. How many way(s) is / are there for Peter to go up the stairs?
    Step: Bước; Way: Cách.

    25. Numbers are drawn from 80 integers 20 to 99. At least how many number(s) is / are drawn at random to ensure that there are two numbers whose sum is 85?
    Integer: Số nguyên; At least: Ít nhất; Random: Ngẫu nhiên; Ensure: Chắc chắn; Sum: Tổng.
    ~ End of Paper ~
    #Toán lớp 5
    1
    TH
    Tran Hai Yen
    13 tháng 4 2022

    chịu thoi khs quá

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    DN
    Đào Ngọc Minh Thư
    12 tháng 8 2015
    1/ Write the equivalent to fraction 3/5 with a denominator of 100.Result is 3/500 , 30/500 , 300/5 , 60/100 2/ If the sum of two numbers is the greatest-four digits number and the ratio of these numbers is the smallest -two digits number . 999 and 989 , 900 and 99 , 909 and 9090 , 989 and 10 3/ 7 hamburgers and 5 ice creams cost $32.10 hamburgers and 5 ice creams cost $35. The cost of one hamburger is $ .... 4/ John has sixteen balls . Jack has one quarter as ball as John . Jack has ..........
    Đọc tiếp

    1/ Write the equivalent to fraction 3/5 with a denominator of 100.Result is 3/500 , 30/500 , 300/5 , 60/100 

    2/ If the sum of two numbers is the greatest-four digits number and the ratio of these numbers is the smallest -two digits number . 999 and 989 , 900 and 99 , 909 and 9090 , 989 and 10 

    3/ 7 hamburgers and 5 ice creams cost $32.10 hamburgers and 5 ice creams cost $35. The cost of one hamburger is $ .... 

    4/ John has sixteen balls . Jack has one quarter as ball as John . Jack has ....... balls 

    5/ Charlie has eighteen pens more than bill . 

    Bill has one third as pen as Charlie . Bill has : 6 pens , 9 pens , 2 pens , 3 pens 
    #Toán lớp 5
    0
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