Number arrangement
50 problems
Find each digit from sum and difference
Make the largest and smallest number
Numbers satisfying several conditions
Arrange digit cards to hit a target number
Insert plus or minus to make an equation true
Make numbers from digit cards
Ascending, descending, palindrome numbers
Write multiplication equations for arrays
Fill circles so paired products match
Find a number meeting given conditions
Recover the starting number
Express a number as consecutive sums
Comparing sizes of fractions
Build an equation meeting given conditions
Arrange cards for the smallest valid result
Numbers with swapped digit places
Largest and smallest from flipped cards
Complete the multiplication equation
Number satisfying sum and product clues
Complete an arithmetic placement puzzle
Build division expressions meeting conditions
Largest and smallest product
Combine containers to hit a target capacity
Find a Number Meeting Digit Conditions
Build division to extremize quotient or remainder
Possible remainder values
Recover hidden digits in long division
Build fractions from digit cards
Find an entry by row and column
Ascending and descending digit numbers
Find the nth largest card number
Order products by where digits are placed
Magic cross with equal line sums
Find the numbers the symbols stand for
Clues that reduce trial and error
Unit fractions from the denominator's divisors
Compare the sizes of fractions
Four fours: reach several large targets
Four fours: hit a target number
Place number cards to make an equation true
Erase one plus sign to hit the target
Insert plus and minus signs to make 100
Append digits to hit several multiples
Fill the grid under row-column-region rules
Largest and smallest line sum
Complete a 4 by 4 magic square
Magic sums on the edges of a cube
Magic star built from paired sums
Symmetric numbers written in digital numerals
Four fours, with a fraction required