Calculator

Keyboard or keypad; * and / work too

Keyboard works too: Enter = equals, Esc = clear. Tap a history entry to reuse it.

Result

Answer
16
Working (step by step)
  • (12 + 8) × 4 ÷ 5
  • = 20 × 4 ÷ 5
  • = 80 ÷ 5
  • = 16