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The sum of the numbers in the outer shapes, minus 1, equals the number in the central circle. What is the pattern or relationship shown?

Mathematics

ScanSolve AI Answer

Answer

Sum of outer numbers−1=Central number\text{Sum of outer numbers} - 1 = \text{Central number}

Step-by-step solution

4 steps
  1. Identify the numbers in the outer shapes.

    The numbers in the outer "finger" shapes are 4, 6, 8, and 2.

  2. Calculate the sum of these numbers.

    4+6+8+2=204 + 6 + 8 + 2 = 20
  3. Compare the sum to the number in the central circle.

    The number in the central circle is 19.
    The sum calculated is 20.

  4. Determine the relationship between the sum and the central number.

    The central number is 1 less than the sum of the outer numbers.

    20−1=1920 - 1 = 19

    The pattern shown in the diagram is that the sum of the numbers in the outer shapes, minus 1, equals the number in the central circle.

    The relationship is:

    Sum of outer numbers−1=Central number\text{Sum of outer numbers} - 1 = \text{Central number}
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