มาทดสอบคิดเลขเร็วกันเลย

  1. 2 + 9 =

  2. 5 x 5 =

  3. 5 - 12 =

  4. 7 + 14 =

  5. 4 x 13 =

  6. 8 - 5 =

  7. 12 x 10 =

  8. 10 + 7 =

  9. 10 x 3 =

  10. 6 - 3 =

  11. 9 + 4 =

  12. 12 - 9 =

  13. 11 + 13 =

  14. 3 + 4 =

  15. 7 x 8 =

  16. 6 + 1 =

  17. 11 x 12 =

  18. 8 + 7 =

  19. 12 - 1 =

  20. 7 - 7 =