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Mathematics knowledge · Difficulty 1

Try this ASVAB-style question.

Choose your answer before opening the explanation. This original practice item is for preparation and does not reproduce an official test question.

Question

What is 4²?

  1. 16
  2. 18
  3. 13
  4. 21
Reveal answer and explanation

16

Multiply the base by itself: 4² means 4 × 4 = 16.