Here are last year's problems.
Here are recent problems for 4th, 5th, & 6th graders.
In 2022, one of the two contests became for 4th & 5th graders.
In the past, one of the two contests was for 5th & 6th graders.
Here are recent problems for 7th & 8th graders.
In 2022, one of the two contests became for 6th, 7th & 8th graders.
In the past, one of the two contests was for 7th & 8th graders.