Number Pattern

Directions: Using the digits 1 to 7, at most one time each, place a digit in each circle so that the sum of the numbers in 3 squares (the middle horizontal line or 2 diagonals) are same.

e.g A+B+C or D+B+E or F+B+G

Is there more than one solution?


Be strategic to think about the number in the center circle.


A possible answer

5 2
7 4 1
6 3

Source: Al Oz

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Equivalent Expressions with Fractions

Directions: Using the digits 0 to 9 at most one time each and choosing either …


  1. a=7 b=1 c=2
    d=6 e=3
    f=5 g=4

  2. A=2 B=7 C=5
    D=3. E=4
    F=1. G=6

    or change the pairing to get similar solutions

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