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IMAS 2017 — Middle Primary Grades 3–4 — Round 1 Question 2

IMAS · IMAS 2017 — Middle Primary Grades 3–4 — Round 1

Question 2

In the arithmetic expression $ \overline{1A} + \overline{B1} = 100 $, what is the value of the digit B?
  1. 5
  2. 6
  3. 7
  4. 8
  5. 9