Below I have created blank 5 frame, 10 frame, and 20 frame (double 10 frame) templates positioned to print perfectly onto the corresponding sized index card. The index card size is in the titles of each file to easily remember. This is a .zip file.
5 frame and 10 frame: 4x6 index card
double 10 frame: 3x5 index card
To be used for number talks by creating various dot combinations with bingo dotters (or circle dots). Could also be used as an assessment for students to show a number in different ways, for example.