Lesson eLearning

What is ?

easy 1 mark Class 1 · Mathematics · Numbers from Twenty One to Fifty
Answer
51

The correct answer is 51 — Combine the tens and units to get .

Step-by-step solution

  1. Add the units digits: . Write down 1 and carry over 1 to the tens column.
  2. Add the tens digits with the carry: .
  3. Combine the tens and units to get .
Common mistake: Adding units and tens separately without carrying over when the sum exceeds nine.

Concept tested: Addition of two–digit numbers

Published · How this solution was prepared and checked

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