She shot upward, breaching the surface with a gasp. She was back in her room, tablet in hand. The screen displayed a single message:
“Ah, a new slugger,” Gus grunted, not looking up. “You know the rules. The sea is a number line. The surface is zero. Every stroke upward is positive, every kick downward is negative. The pearl you need is resting at -8.” math snacks pearl diver
Third gate: (where x = 4). 2 times 4 is 8. True. She swam on. She shot upward, breaching the surface with a gasp
Kaila looked at her starting depth: . She needed to reach -8 . She swam to the first seabed tunnel, which had a glowing sign: +3 . If she swam through that, she’d go up to -4. Wrong direction. The next tunnel was -2 . From -7, minus 2 is -9. Too deep. The third was +5 , which would send her to -2. Even worse. “You know the rules