Roman Numerals Converter vs Multi Base Blocks Applications

A handy and easy to use app to convert Roman numerals to Arabic numbers and vice versa. Features: • Converts Roman numerals to Arabic numbers and vice versa. Just enter either a whole number from 1 to 3,999,999 or a Roman numeral and click '='. • A horizontal bar placed above a Roman numeral indicates multiplication by 1000. • Keyboards to input Roman numerals and Arabic numbers. • The app validates the input of Roman numerals. • Flip button to easily switch between Roman numerals and Arabic numbers. • Roman Numerals Pro stores conversion history (last 25 results). • Results can be sent via email.

Multi Base Blocks Applications contains four apps to help young children proceed from the concepts of trading and place value through to the written algorithms for addition and subtraction. Preschool children can practice trades and learn about place value and grouping using the applications Win A Block and Trade A Block. School aged children can use the applications Addition and Subtraction to bridge from performing the operations with blocks to carrying out the operations with symbols. On the same screen, students model the problem with multi-base blocks and are guided to perform trades and moves to arrive at the answer. While the students move the blocks, symbols are adjusted to match the student moves through to the final answer. Parents or teachers can help children by making choices concerning grouping size, how many digits or columns in a problem, repeating a problem, creating a specific problem or generating a random problem. The applications are not intended to teach operations in another base, but to help children become familiar with the algorithmic processes so that they can more easily learn addition and subtraction in base 10.