Special Holiday Episode!" It's Mother's Day in cyberspace - and Hacker is determined to ruin it for everyone, especially Motherboard, by derailing the train that picks up the rare and colorful Madre Bonitas. This beautiful flower symbolizes Mother's Day, and it must be harvested on this one day only. It's a race against time, as the kids and Digit try to repair the breaks in the line and save Mother's Day. The Big Idea: Use a decimal point to join tenths with whole numbers and you have a decimal system you can use to easily record, compare and combine whole numbers with fractions. Math Topic: Decimals; NCTM Links: Number and Operations.