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?
The sum of two numbers is the greatest 2 - digit number and their difference is 13. The greater number is ..........
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!
how many numbers between 100 and 500 have the sum of their digits equal to 5
the sum of two odd numbers is 112 . Find those numbers if there are 6 odd numbers between them.
Cái này là toán tiếng anh nha.
What is the largest number,which when divided by 13 has quotinent equal to remainder?
Find two numbers, know that their sum is equal to 454. If we add digit 4 to the left of the second number, we will get the first number……………………………………………..
The sum of 2 positive integers a;b ends with 5.Find the last digit of the number a x b x (a + b).Dịch dùm mik nha!
If the sum of all T's digits is 21 then the smallest possible value of T is ...