Reiknireglur – Æfing 1.1 – Einfaldið

  1. 7 – 32
  2. 42 – 22
  3. (6 – 2)2
  4. 62 + 52
  5. (6 + 5)2
  6. 92 – 42
  7. (9 – 4 )2
  8. 2·4 + 325
  9. 2(4 + 32)·5