Natural numbers + reason - practice problems
Number of problems found: 543
- My 4
My 4-digit number is a palindrome; it has a remainder of 21 when you divide it by 100. what is my number? A palindrome is a number that does not change if you write it backward. - Same remainder
Find the greatest number that will divide 43, 91, and 183 so as to leave the same the remainder in each case. - 52 cards
A hand of five cards is dealt from a pack of 52 playing cards. How many different hands can be dealt that contain three aces? - Numbers 22811
How many digits are in the numbers 1 to 100?
- Questions 6898
Write a word problem with three questions for numbers 2 and 6. - Four-digit number
For a four-digit number abcd, ab: bc = 1:3 and bc: cd = 2:1 (ab, bc, and cd are two-digit numbers from digits a, b, c, d). Find this number(s). - Contains 66184
Which natural number contains 12 thousand, 15 hundred, 21 tens, and 11 units? - Signs 40171
Fill in the signs to apply 5 5 5 5 5 = 14 - Classmates
Roman is ranked 12th highest and eleventh lowest pupil. How many classmates does Roman have?
- Expressions 62294
Express the numbers 18, 28, 32, 40, 48, and 200 as numerical expressions composed of exactly five pairs. - Mystery number
A mystery number is between 800 and 920. No digits are the same. The difference between the numbers is 5. What is the mystery number? - Single-digit 2805
Which two single-digit numbers have the sum and product of the same number? - Letters
ABC + DEF = GHIJ replace letters with numbers so that the sum is correct (different letters = different numbers) - Children 5352
father + mom = children How much does the task have to be solved?
- Inhabitants 5458
The population of the village rounding up to hundreds is 5600. Most how many inhabitants can live in this village? - Identity
123456789 = 100 Correct the given identity/equation only using three plus or minus signs. - Sum and rounding
I know two numbers whose sum is 20. When each round and then added together, I get the 30. What are these numbers? - Eight chairs
There are eight chairs by the table, and one more child sitting on each one. There are two times more girls than boys. How many girls and how many boys can there be? - Organizers 45351
The ski organizers have to print the start numbers from 1 to 45. How many times do they use the number 3 when printing?
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