Brain Test 1 Level 278

Brain Test 1 Level 278 Question

What is the question mark

Strategy Guide for Brain Test 1 Level 278

• 1.Add all three corner numbers in each triangle to find the center value;
• 2.Verify the pattern with the first triangle: 8+3+1=12 matches the center;
• 3.Apply the same addition to the last triangle: 4+5+10=19 for the answer.

Common Mistakes

• 1.Adding only two numbers in each triangle instead of all three corners;
• 2.Trying to find a mathematical pattern between triangles rather than within each one;
• 3.Assuming the question mark relates to the triangle's shape rather than its numerical sum.