The sum A is equal to the sum of all odd numbers
between 1 and 99:

A = 1 + 3 + 5 + 7 + . . . + 99

The sum B is equal to the sum of all even numbers between 2 and
100:

B = 2 + 4 + 6 + 8 + 10 + . . . . + 100.

**Q1**: Which sum is larger: A or B?

**Q2**: By how much is one of the sums larger
than the other?

**The Solutions**

Question 1: **B**

Because all the numbers in group B are bigger
than group A.

Question 2: **50**

Each group has 50 numbers.

Each number in group B is one ahead of group
A.

1 * 50 = 50

School: King Elementrary School

Name: justin

Age: 7

Grade: 2

State: Michigan