When it comes to writing the digits 1, 2, 3, etc. there is no true cursive script, meaning there is no method for connecting the digits one to another. The reason for this is straightforward enough: the clarity of numbers is extremely important. Unlike writing out words, there are few, if any, context clues as to what a number should be. Therefore writing styles try to get people to write out the digits one at a time, and clearly. Of course if you have tried to read people’s phone numbers, postal addresses and email addresses—which often include numbers—you will know that people still manage to write illegible numerals.
Although there are no true cursive numerals, there are methods of adapting the style of the digits to match a cursive script. One example is shown here: