Curated OER
Column Addition-4 Digits, Sheet 6
In this addition worksheet, students complete a set of 12 problems, adding 3 and 4 digit numbers. Problems must be arranged vertically and solved. A reference web site is given for additional activities.
Curated OER
Fun Math: Adding 4-Digit Numbers
In this addition learning exercise, students solve a total of 15 problems, adding two 4-digit numbers together. Problems are accompanied by "cute" animal pictures.