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Add the three numbers on each of these lines. What do you notice? 5 + 13 + 21 = 6 + 13 + 20 = 7 + 13 + 19 = 12 + 13 + 14 = - Mathematics

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Question

Add the three numbers on each of these lines. What do you notice?

5 + 13 + 21 = 

6 + 13 + 20 = 

7 + 13 + 19 =

12 + 13 + 14 =

Numerical
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Solution

5 + 13 + 21 = 39

6 + 13 +20 = 39

7 + 13 + 19 = 39

12 + 13 + 14 = 39

On adding these numbers, it is noticed that the total of each such line is the same.

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Time Goes On.......
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Chapter 7: Time Goes On....... - Calendar Magic [Page 105]

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NCERT Math - Magic [English] Class 3
Chapter 7 Time Goes On.......
Calendar Magic | Q 3 | Page 105

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