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Each month, a new set of puzzles will be posted.  Come back next month for the solutions and a new set of puzzles, or subscribe to have them sent directly to you.

EQUATE + puzzles

In EQUATE + puzzles, each row, column and diagonal is a mathematical expression or equation. Use the numbers 1 to 9 to satisfy each equation; using each number only once. The numbers provided in each puzzle are to get you started and depend on the puzzle’s level of difficulty (i.e., +3 = least and +0 = most). Find the remaining numbers that satisfy all the resulting equations.
Note: multiplication (x) and division (/) are performed before addition (+) and subtraction (-).

 

EQUATE+3

EQUATE+2

EQUATE+1

EQUATE+0

 

 

 

 

 

 

 

 

 

 

Feedback

There are more than one way of doing these puzzles and may well be more than one answer.  Please let me and others know what alternatives you find by commenting below.  We also welcome general comments on the subject and any feedback you'd like to give.

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Last month's solutions

HEXAGON-numeric Puzzle (Level 1)

Fit the numbers 1 to 6 in each hexagon so that where a hexagon touches another, the numbers in each of their touching segments are the same. No number is repeated in any hexagon. Solve the puzzle by finding all the missing numbers.

Solution: 

 

HEXAGON-numeric Puzzle (Level 2)

Fit the numbers 1 to 6 in each hexagon so that where a hexagon touches another, the numbers in each of their touching segments are the same.

  • No number is repeated in any hexagon.
  • The numbers in the shaded areas are the sum of the numbers in the 2 or 4 segments that they side with.
  • The numbers in the Input and Output boxes are the sum of the numbers in the 3 segments that they side with.

Solve the puzzle by finding the Output number.

Solution:

HEXAGON-numeric Puzzle (Level 3)

Fit the numbers 1 to 6 in each hexagon so that where a hexagon touches another, the numbers in each of their touching segments are the same.

  • No number is repeated in any hexagon.
  • The numbers in the shaded areas are the sum of the numbers in the 2 or 4 segments that they side with.
  • The numbers in the Sum boxes are the sum of the numbers in the 4 segments that they side with.
  • The numbers in the Input and Output boxes are the sum of the numbers in the 3 segments that they side with.

Solve the puzzle by finding the Output number.

Solution:

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