Priscilla Ng's answer to Iris teo's Primary 5 Maths Whole Numbers Singapore question.
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There are 50 even numbers from 1 to 100.
Adding the first to the last even number will give the sum of 102.
Same goes for adding 2nd to the 2nd last even number, 3rd to 3rd last even number, etc.
Altogether, there are 25 pairs, each with the sum of 102.
Hope the explanation is clear to you.
Adding the first to the last even number will give the sum of 102.
Same goes for adding 2nd to the 2nd last even number, 3rd to 3rd last even number, etc.
Altogether, there are 25 pairs, each with the sum of 102.
Hope the explanation is clear to you.
Date Posted:
5 years ago
That is very clear. Thank you very much.
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