Math Problem Statement

work out

The numbers on each line have the same total. What is the value of the missing number?

Solution

To solve this problem, we need to find the missing number in a configuration where the sum of the numbers along each line is equal.

Given numbers:

  • Top circle: 9,3649,364
  • Left circle: 7,0597,059
  • Bottom circle: 6,5026,502
  • Center circle: 4,8174,817
  • Right circle (missing value): ?

Solution Steps:

  1. Assume the total sum on each line is SS.
  2. Find SS using one complete line, such as the line connecting 9,3649,364, 4,8174,817, and missing number\text{missing number}.
  3. Calculate S=9,364+4,817=14,181S = 9,364 + 4,817 = 14,181.
  4. Use this total to find the missing number for the line involving 7,0597,059, 4,8174,817, and the missing value.

Let's solve:

Missing number=S7,0594,817=14,18111,876=2,305\text{Missing number} = S - 7,059 - 4,817 = 14,181 - 11,876 = 2,305

Answer:

The missing number is 2,305.

Would you like additional details on the calculations or a breakdown of the logic?

Here are five additional questions to expand your understanding:

  1. How can we verify that all lines in this configuration indeed add up to the same total?
  2. What if the total on each line was different—how would that change the approach?
  3. How does understanding patterns in sums help in solving similar problems?
  4. What other strategies could be used to identify the missing number in similar configurations?
  5. Why is it important to confirm the total by calculating more than one line?

Tip: When working with number puzzles, always cross-check by testing multiple lines or paths in the configuration to ensure consistency.

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Math Problem Analysis

Mathematical Concepts

Arithmetic
Number Patterns

Formulas

Sum of numbers along a line

Theorems

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Suitable Grade Level

Grades 5-7