Brain Test 5 Level 19
๐ Walkthrough
Overview
A number-path puzzle opens with the starting value 1 and two operation buttons laid along the route: add two and multiply by two. The goal is to chain those operations in the correct order so the running total reaches the target value 6. The answer is to tap the add-two button first, then the multiply-by-two button.
- Difficulty: Easy
- Estimated moves: 2
Step-by-Step Solution
- Locate the starting number 1 on the board. Confirm this is the token you carry through the operations rather than a target number to tap directly.
- Tap the +2 button first. Apply it to the current value: 1 + 2 = 3, so the running total becomes 3.
- Once the board shows 3, tap the ร2 button. Multiply the running total by two: 3 ร 2 = 6.
- The token lands on 6, which matches the target shown for this route. If the board rejects the move, check that your current value matches the step before tapping the next operation.
- When the running total reaches 6 in the correct sequence, the checkmark appears and the level completes.
- Keep the running total visible between taps; after 1 + 2 the board should show 3, and only then should the multiply-by-two button be tapped, since the second operation reads that current value.
- If your final number is 4, the buttons were pressed in reverse order; restart from 1, add two to reach 3, then multiply by two to land on the target 6.
- Treat each button as acting only on the number currently on the board; do not precompute a combined result before tapping, because the level reads the intermediate 3 between the two operations.
Strategy & Reasoning
This is a chained arithmetic puzzle where order changes the result. The two operations are not meant to be combined into one formula; each button acts on whatever value you hold at that moment. Reading them in the sequence they are presented โ add two, then multiply by two โ gives 1 + 2 = 3 followed by 3 ร 2 = 6, which reaches the target exactly.
Swapping the order shows why sequence matters: multiplying first gives 1 ร 2 = 2, and adding two afterward gives 2 + 2 = 4, which falls short of 6. The level therefore checks both the chosen operations and the order in which you press them. There is no hidden number or extra prop involved; the only decision is which button comes first, and verifying each intermediate result before the next tap prevents a miscount.
Tips & Common Mistakes
- Apply the +2 button before the ร2 button; reversing them lands you on 4 instead of 6.
- Evaluate the running total after each tap; do not press both buttons at once, since the second depends on the first result.
- Confirm the target is 6 before you finish; if your final value differs, retrace the two operations in order rather than guessing another button.