Toby wrote down numbers from 1 to 100 on the whiteboard. Which digit appeared the least number of times?
Question 1:
The least common multiple of 330; 65; 15 is
Question 2:
Given seven numbers: 25; 17; 39; 43; 239; 1021; 1023.
The composite numbers are
(Write numbers in order from the least to the greatest and use ";")
Question 3:
The common factors of 18 and 27 are
(Write numbers in order from the least to the greatest and use ";")
Question 4:
Given the set of even numbers: {2; 4; 6; …; 100}.The number of elements is
Question 5:
Find four integer numbers a,b,c,d such that
a + b + c + d = 1
a + c + d = 2
a + b + d = 3
a + b + c = 4
Answer: (a;b;c;d)=()
Question 6:
Find a four-digit natural number that is less than 2015.If the thousands digit is erased,the number will be decreased by 9 times.
Answer:The number is
Question 7:
Calculate: 1×2+2×3+⋯+100×101=
Question 8:
The term of the expression A=1-7+13-19+25-31+⋯ is
Question 9:
Given the expression A= ...
Find the value of n such that 2A+3=
Answer: n=
Question 10:
A natural number has six digits and the units digit is 4.If the units digit is moved to the first row then the number will be increasedby 4 times.The number is
The numbers from 1 to 1000 are written. How many of these numbers have at least two digit 5?
A,B,C,D,A+C,B+C,A+D,B+D represent 8 diffirent natural numbers from 1 to 8. If A is the largest number in the number from 1 to 8.Find A
How many natural numbers are there between 100 and 999 that unit-digit and tens-digit equal hundreds-digit ?
LUYỆN VIOLYMPIC TIẾNG ANH LỚP 4 (2021-2022)
Câu 1: The sum of all one digit numbers?
Câu 2: Which value is not equal to 4500? (45tens, 450tens, 45 hundred)
Câu 3: Which number below is the word form of 20 300?
Câu 4: How many two digit odd numbers are there that are greater than 15?
Câu 5: Lily writers a number. It has the digit 5 in the thousands place and the digit 8 in the units place. Which of these numbers could Lily have written?
Câu 6: What is the smallest posible number that can be written using the digits 4, 7, 0, 6? (use each digit only once)
Câu 7: If the sum of three consecutive natural numbers is less than 90, find the largest possible value of the largest natural number is?
Câu 8: How many multiples of 4 lie between 1000 and 2500?
Câu 9: Read number: 35 206 :...........................................................
Câu 10: Jack finished the bicycle race with a time of 34152 seconds, Jane finished with a time of 34215 seconds, and Tina finished with a time of 34125 seconds. In what order did they finish the race?
Câu 11: The The greatest odd number that can be formed by all the digit 1,2,0 and 8 is?
Câu 12: A rectangle having length and breadth are 25cm and 8cm respectively. The perimeter of the rectangle?
Câu 13: Amy put 50 photographs into an online photo album. On each page she could fit eight photos. How many photos were on the last page?
Câu 14: Bon is 5 years old. Ben’s age is 3 years more than the double of Bon’s age. Find the age of Ben?
Câu 15: Which value is equal to 56 hundreds? (56000; 5600 tens; 560 tens; 56 units)
Câu 16:What is the perimeter of a square with side lengths of 205 cm?
Câu 17: What is the greatest 3-digit number whose digits total is 13?
Câu 18: Anna has a chocolate chip cookie recipe that makes 60 cookies and calls for 6cups of flour. If he only wants to make 40 cookies. How many cups of flour would he need?
Câu 19: A string of 5m35cm was cut into 5 equal parts. What’s the length of each part in cm?
Giúp mình với!
Câu 1: The sum of all one digit numbers?
1+2+3+4+...+9=45
Câu 2: Which value is not equal to 4500? (45tens, 450tens, 45 hundred)
45tens
Câu 3: Which number below is the word form of 20 300?
twenty thousand and three hundred
Câu 4: How many two digit odd numbers are there that are greater than 15?
17; 19; 21; .....; 99=> (99-17):2+1=83 numbers
Câu 5: Lily writers a number. It has the digit 5 in the thousands place and the digit 8 in the units place. Which of these numbers could Lily have written?
5008
Câu 6: What is the smallest posible number that can be written using the digits 4, 7, 0, 6? (use each digit only once)
0476( because it doesn't talk that the number need 4 digits)
Câu 7: If the sum of three consecutive natural numbers is less than 90, find the largest possible value of the largest natural number is?
n;n+1;n+2 => 90:3=30-> n+1=30=> n=29=>n+2=31
Câu 8: How many multiples of 4 lie between 1000 and 2500?
=> 1000\(\le\)x\(\le\)2500=> There are 376 numbers is the multiples of 4
Câu 9: Read number: 35 206 :.thirty five thousand two hundred and six
Câu 10: Jack finished the bicycle race with a time of 34152 seconds, Jane finished with a time of 34215 seconds, and Tina finished with a time of 34125 seconds. In what order did they finish the race?
The same order
câu 1: 45
câu 2:450 tens
câu 4:42
câu 6:4067
An infinite sequence of numbers 1, 2, 3, 5, 8, 3, 1, 4, 5, 9, 4, … follows the
pattern such that starting from the third number, each number is equal to the units
digit of the sum of the two numbers in the sequence immediately preceding it.
What is the 2019th number of the sequence?
đề bài là gì vậy
Một dãy vô hạn các số 1, 2, 3, 5, 8, 3, 1, 4, 5, 9, 4, ... theo sau bài toán sao cho bắt đầu từ số thứ ba, mỗi số bằng hàng đơn vị của tổng của hai số trong dãy liền trước nó. Số thứ 2019 của dãy là bao nhiêu? =)
A 4-digits number is divisble by all of the numbers from 1 to 10 ưithout any remainder .
find the smallest possible value of the 4 - digit number
Integers from 1 to 20 inclusive are written on the board.Any 2 numbers on the board are erased and then the sum of the two erased number are written on the board.This process is repeated exactly 18 times.Now there are just 2 numbers left on the board,so that one is 6 times the other.Find the smallest number of the two.Dịch cho mik với nha!
Số nguyên từ 1 đến 20 được ghi trên bảng.Như 2 con số trên bảng sẽ bị xóa và tổng của hai số đã xoá được ghi lên bảng. Quá trình này được lặp lại chính xác 18 lần. Bây giờ chỉ còn lại 2 con số trên bảng, để một là 6 lần khác. Tìm số nhỏ nhất của hai.
Dịch là vậy nà.
Chúc bạn hok tốt.k nha!
Số nguyên từ 1 đến 20 được ghi trên bảng.Như 2 con số trên bảng sẽ bị xóa và tổng của hai số đã xoá được ghi lên bảng. Quá trình này được lặp lại chính xác 18 lần. Bây giờ chỉ còn lại 2 con số trên bảng, để một là 6 lần khác. Tìm số nhỏ nhất của hai
có cần làm lun ko z?
how many times does the digit 4 appear in the number from 1 to 100?
Answer:...times
Andrew, Bryan and Charlie each draws two card from a stack of cards number 1 to 8. • One of Bryan's cards has a number twice of the other. • The sum of the numbers on Charlie's cards is 9. • The sum of the numbers on Andrew's cards is 7 but the difference is not 3. Which two cards are not drawn?