QuestenaUn entraînement qui indique quoi revoir ensuite
RechercheCréer un test
Question 49

What is the value of 3 - 7?

  1. 4
  2. -4Bonne réponse
  3. 10
  4. -10

Explication

Taking seven from three means seven steps to the left, and three of them reach zero while four more carry on below it. A result of 4 takes the smaller magnitude from the larger whichever way round they are written, which ignores the order the subtraction fixes.

Continuer avec ce test

Commencer l’entraînement
Comprendre ce thème (≈5 min)Retour au test
Question 49: What is the value of 3 - 7? · Integers and Negative Numbers · Questena