Following are a number of back-translations as well as a sample translation for translators of Psalm 90:12:

• Chichewa Contempary Chichewa translation, 2002/2016:
  “Teach us to count our days accurately,
  that we may have a wise heart.” (Source: Mawu a Mulungu mu Chichewa Chalero Back Translation)
• Newari:
  “Teach us to become ones who understand
  [how] to count the number of our days.” (Source: Newari Back Translation)
• Hiligaynon:
  “Cause- us (excl.) -to-understand that our (excl.) lives (are) short,
  so-that we (excl.) will-become-wise in our (excl.) living.” (Source: Hiligaynon Back Translation)
• Laarim:
  “You teach us well that our lives are short,
  so that we would be wise.” (Source: Laarim Back Translation)
• Nyakyusa-Ngonde (back-translation into Swahili):
  “Tufundishe kuuelewa ufupi wa uhai wetu,
  ili tuwe na moyo wa hekima.” (Source: Nyakyusa Back Translation)
• English:
  “So teach/help us to realize that we live for only a short time
  in order that we may use our time wisely.” (Source: Translation for Translators)