Lesson eLearning

Initially, 5 birds were on a tree. 2 more birds flew in. Then 3 birds flew away. After that, 4 more birds flew in. Finally, 1 bird flew away. How many birds are on the tree now?

hard 3 marks Class 2 · Mathematics · Birds Come Birds Go
Answer
7

The correct answer is 7 — Hence, there are 7 birds on the tree.

Step-by-step solution

  1. Start with 5 birds.
  2. Add the 2 birds that flew in: 5 + 2 = 7.
  3. Subtract the 3 birds that flew away: 7 – 3 = 4.
  4. Add the 4 birds that flew in: 4 + 4 = 8.
  5. Subtract the 1 bird that flew away: 8 – 1 = 7.
  6. Hence, there are 7 birds on the tree.
Common mistake: Adding all incoming birds first and then subtracting, leading to wrong total

Concept tested: Multiple sequential operations

Published · How this solution was prepared and checked

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