Young scholars examine the outcome of adding one to a group of items. In this number sense instructional activity, students create stacks of chips and count them. Then, young scholars add one more chip to the stack and count the chips...

In this adding one learning exercise, students solve 10 problems in which the number one is added to a single digit number from 1 to 5.

In this adding one worksheet, students solve 20 problems in which the number 1 is added to a single digit number. Numbers are both in horizontal and vertical format.