Catherine Vitti

Fraction-O-Meter allows users to build their skills in: Evaluating and estimating fractions Expressing fractions as decimals and percentages Factoring …

Practice solving subtraction problems of one-digit to five-digit numerals. Work column-by-column or by doing the math in your head and selecting from …

Solve addition problems of one-digit to five-digit numerals in the traditional column-by-column method, or do the math in your head and then choose th …