Recreational Mathematics: Palindromes in Mathematics and the Search for Patterns
Users study a chart containing numbers 1 to 99 and look for trivial palindromes as well as double and triple iteration palindromes. The reverse and add technique is demonstrated.
Adding Fractions With Unlike Denominators (Screencast)
Learners follow steps to add fractions with different denominators. They also review fraction concepts, do a drag-and-drop exercise involving fraction terms, and add fractions with common denominators.
In this animated and interactive object, learners view two examples of how to subtract fractions with unlike denominators and then work five similar problems.
Scientific Notation - Converting Scientific Notation to Ordinary Numbers
In this learning activity you'll review an explanation of scientific notation and complete exercises to convert scientific notation to ordinary numbers.