Divisibility - practice for 12 year olds
Number of problems found: 184
- Digit sum
Find the smallest natural number n, the digit sum of which equals 37. - Divisibility
Determine all divisors of number 90. - Is prime?
Which of the following numbers is prime? 21,11,18,25 - Calculate 67294
Calculate the sum of all divisors of the number 70. - Digit sum
Determine how many integers greater than 900 and less than 1,001 have the digit sum digit of the number 1. - Consecutive 8004
The sum of five consecutive odd numbers is 35. What are these numbers? - The sum
The sum of five consecutive odd numbers is 75. Please find out the sum of the second and fourth of them. - Common divisors
Find all common divisors of numbers 30 and 45. - Five-digit 78944
What is an even five-digit number whose digit sum is 44? - Six-digit 4787
Which largest six-digit number has a digit sum of 27? - Even/odd numbers
What is the product of 0.97 and the following odd decimal number? - Consecutive 47033
The sum of three consecutive odd numbers is 183. What is the largest of them? - Divisors 40571
All common divisors of headings 90 and 48 - Consecutive 31611
The sum of two consecutive natural numbers, of which the greater is 4x, equals the number 55. Determine the number x. - Consecutive 21033
The sum of eight consecutive even natural numbers is 1,688. Determine the largest of the numbers. - The largest divisor
The largest number which divides 60 and 75 leaving remainders 8 and 10 respectively is: - The dice
Find the probability that a number divisible by two or three will fall when the dice are rolled. - Five-digit 19873
Find the smallest five-digit number A432B that is divisible by 15. - Divisible 67304
Which number should replace the letter X so that the number 7618X is divisible by three and four? - How many
How many numbers are less than 222 with a digit sum is 8?
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