Worksheet: Sums of Consecutive Integers

In this worksheet, we will practice solving problems involving sums of consecutive integers.


The lengths (in centimeters) of the sides of a hexagon have consecutive integer values, and the hexagon’s perimeter is 147 cm.

How long is its longest side?


Find three consecutive numbers whose sum is 420.

  • A141, 142, 143
  • B139, 141, 143
  • C141, 143, 145
  • D139, 140, 141


The triangle shown below has a perimeter of 120 cm. What is its area?

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