Lesson eLearning

What is 42 + 58?

hard MCQ 3 marks Class 2 · Mathematics · Add our Points
  1. 99
  2. 100
  3. 101
  4. 102
Answer
100

The correct answer is 100 — Write 10 in tens place, giving 100 as the final sum.

Step-by-step solution

  1. Add the units place: 2 + 8 = 10.
  2. Write 0 in units place and carry 1 to tens place.
  3. Add the tens place: 4 + 5 = 9.
  4. Add the carried 1: 9 + 1 = 10.
  5. Write 10 in tens place, giving 100 as the final sum.
Common mistake: Ignoring the carry from units place leading to 99

Concept tested: Addition of two two‑digit numbers with carry

Published · How this solution was prepared and checked

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