Brain Test 4 - Tricky Friends Level 309

Brain Test 4 Level 309 answer and hint with full solution and walkthrough. Learn how to solve Level 309 easily with Brain Test Level’s detailed explanation and clear images.

Brain Test Level 309 - Step 1
Step 1
Brain Test Level 309 - Step 2
Step 2

How is this correct?

Answer

Use the eraser on the number 5 to reveal '5-5', making the equation correct.