зеленый -23 - (-30) = -39:(-3) = -49 + 89 = -23 · (-2) = -35 + 76 = - 68: (-2) =

зеленый

1. \[ -23 - (-30) = -23 + 30 = 7 \]
2. \[ -39 : (-3) = 13 \]
3. \[ -49 + 89 = 40 \]
4. \[ -23 · (-2) = 46 \]
5. \[ -35 + 76 = 41 \]
6. \[ -68 : (-2) = 34 \]