Brain Out Level 46

Overview

The screen shows the hand-drawn equation 1 + 0.7 + 0.3 = ? with the prompt "Can you solve this question?" printed above it. There is no visible keyboard, no numeric input box, and no obvious way to type the answer, which is the first hint that the puzzle is hiding its interface. The arithmetic itself is trivial — 0.7 + 0.3 rounds up to 1, plus the leading 1 gives 2 — but the game will not accept a normal typed answer until you expose the input method. The whole trick is recognizing that the question mark on the right side of the equation is a movable object, not a fixed punctuation mark.

• Difficulty: Easy
• Estimated moves: 2

Step-by-Step Solution

1. Read the equation carefully: 1 + 0.7 + 0.3 = ?. Notice that the question mark on the far right is drawn in the same hand-drawn style as the rest of the digits, and that there is no keyboard visible anywhere on the screen.
2. Place your finger on the large ? symbol on the right side of the equals sign. Hold it and drag it horizontally off the equation toward the left edge of the screen, or simply swipe it away from the right side.
3. As you drag the ? off the equation, the puzzle reveals a hidden numeric input field directly below the equals sign. This field was covered by the question mark until you moved it.
4. Compute the sum: 1 + 0.7 + 0.3 = 1 + 1 = 2. Enter 2 into the newly revealed input box.
5. Tap the confirm/OK control. The green check appears and the congratulations popup loads.

Strategy & Reasoning

The level is a classic "hidden input" trick. Most players stare at the equation for thirty seconds trying to find a catch in the decimals — wondering whether the floating-point 0.7 + 0.3 should really round to 1.0, or whether the leading 1 is a trick — when in fact the arithmetic is deliberately simple. The difficulty is purely in noticing that the ? is draggable. Once the question mark moves, the game exposes a standard answer box that accepts the straightforward integer 2. Trying to type on the equation itself, or dragging the digits around, does nothing useful. The intended path is to remove the decorative question mark and treat the equation as a normal problem whose answer is 2.

Tips & Common Mistakes

• Do not overthink the decimal sum. 0.7 + 0.3 equals exactly 1, so the total is 2, not 1.7, not 1.3, and not 1.0.
• Do not try to type directly on the equation or tap the equals sign. There is no keyboard until you move the question mark.
• Do not drag the digits themselves. Only the ? on the right side is draggable; the numbers and plus signs are fixed decoration.