- 1Prime Numbers and Numbers Over 20 (Venn diagram)Sort numbers: prime, more than 20, both or neither.adaptive
- 2Greatest Common FactorFind the GCF of two numbers.adaptive
- 3Lowest Common MultipleFind the LCM of two numbers.adaptive
- 4Square Numbers and Even Numbers (Venn diagram)Sort numbers: square numbers, even numbers, both or neither.adaptive