Mathematics
Grade5
Easy

Question

Sum of 2.3 + 7.7

  1. 9
  2. 10
  3. 11
  4. 12

Hint:

Arrange the numbers vertically and add the digits.

The correct answer is: 10


    Subtract 0.3 from 2.3 and compensate by adding 0.3 to 7.7
    (2.3 - 0.3) + (7.7 + 0.3)
    2 + 8 = 10

    Arrange the numbers vertically and add:


    Step 1: Add 3 and 7.

    3+7=10

    Here, the 1 is a carry.

    Step 2:

    2 + 7 + 1 = 10

    The answer is 10.

    The correct option is (b) 10

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